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3.162-1.179.633 1.581.23 2.76.115 3.048.733.805 1.179 1.825 1.179 3.09 0 4.413-2.688 5.39-5.247 5.678.417.36.776 1.05.776 2.128 0 1.538-.014 2.774-.014 3.162 0 .302.216.662.79.547C20.709 21.637 24 17.324 24 12.25 24 5.896 18.854.75 12.5.75Z"></path> </svg> </a> <div class="flex-1 flex-order-2 text-right"> <a href="/login?return_to=https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fpull%2F36979" class="HeaderMenu-link HeaderMenu-button d-inline-flex d-lg-none flex-order-1 f5 no-underline border color-border-default rounded-2 px-2 py-1 color-fg-inherit js-prevent-focus-on-mobile-nav" data-hydro-click="{"event_type":"authentication.click","payload":{"location_in_page":"site header menu","repository_id":null,"auth_type":"SIGN_UP","originating_url":"https://github.com/mdn/content/pull/36979","user_id":null}}" data-hydro-click-hmac="c0c145026c62b70c39ea4a15464482fea1f9c4c8e0d789f9159941c84437f21b" data-analytics-event="{"category":"Marketing nav","action":"click to Sign 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5.22a.749.749 0 0 1 0 1.06l-4.25 4.25a.749.749 0 0 1-1.06 0L3.22 6.28a.749.749 0 1 1 1.06-1.06L8 8.939l3.72-3.719a.749.749 0 0 1 1.06 0Z"></path> </svg> </button> <div class="HeaderMenu-dropdown dropdown-menu rounded m-0 p-0 pt-2 pt-lg-4 position-relative position-lg-absolute left-0 left-lg-n3 pb-2 pb-lg-4 d-lg-flex flex-wrap dropdown-menu-wide"> <div class="HeaderMenu-column px-lg-4 border-lg-right mb-4 mb-lg-0 pr-lg-7"> <div class="border-bottom pb-3 pb-lg-0 border-lg-bottom-0"> <ul class="list-style-none f5" > <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"github_copilot","context":"product","tag":"link","label":"github_copilot_link_product_navbar"}" href="https://github.com/features/copilot"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon 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2.497.442.544 1.134.938 2.344.938 1.573 0 2.292-.337 2.657-.751.384-.435.558-1.15.558-2.361 0-1.14-.243-1.847-.705-2.319-.477-.488-1.319-.862-2.824-1.025-1.487-.161-2.192.138-2.533.529-.269.307-.437.808-.438 1.578v.021c0 .265.021.562.063.893Zm-1.626 0c.042-.331.063-.628.063-.894v-.02c-.001-.77-.169-1.271-.438-1.578-.341-.391-1.046-.69-2.533-.529-1.505.163-2.347.537-2.824 1.025-.462.472-.705 1.179-.705 2.319 0 1.211.175 1.926.558 2.361.365.414 1.084.751 2.657.751 1.21 0 1.902-.394 2.344-.938.475-.584.742-1.44.878-2.497Z"></path><path d="M14.5 14.25a1 1 0 0 1 1 1v2a1 1 0 0 1-2 0v-2a1 1 0 0 1 1-1Zm-5 0a1 1 0 0 1 1 1v2a1 1 0 0 1-2 0v-2a1 1 0 0 1 1-1Z"></path> </svg> <div> <div class="color-fg-default h4">GitHub Copilot</div> Write better code with AI </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"security","context":"product","tag":"link","label":"security_link_product_navbar"}" href="https://github.com/features/security"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-shield-check color-fg-subtle mr-3"> <path d="M16.53 9.78a.75.75 0 0 0-1.06-1.06L11 13.19l-1.97-1.97a.75.75 0 0 0-1.06 1.06l2.5 2.5a.75.75 0 0 0 1.06 0l5-5Z"></path><path d="m12.54.637 8.25 2.675A1.75 1.75 0 0 1 22 4.976V10c0 6.19-3.771 10.704-9.401 12.83a1.704 1.704 0 0 1-1.198 0C5.77 20.705 2 16.19 2 10V4.976c0-.758.489-1.43 1.21-1.664L11.46.637a1.748 1.748 0 0 1 1.08 0Zm-.617 1.426-8.25 2.676a.249.249 0 0 0-.173.237V10c0 5.46 3.28 9.483 8.43 11.426a.199.199 0 0 0 .14 0C17.22 19.483 20.5 15.461 20.5 10V4.976a.25.25 0 0 0-.173-.237l-8.25-2.676a.253.253 0 0 0-.154 0Z"></path> </svg> <div> <div class="color-fg-default h4">Security</div> Find and fix vulnerabilities </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"actions","context":"product","tag":"link","label":"actions_link_product_navbar"}" href="https://github.com/features/actions"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-workflow color-fg-subtle mr-3"> <path d="M1 3a2 2 0 0 1 2-2h6.5a2 2 0 0 1 2 2v6.5a2 2 0 0 1-2 2H7v4.063C7 16.355 7.644 17 8.438 17H12.5v-2.5a2 2 0 0 1 2-2H21a2 2 0 0 1 2 2V21a2 2 0 0 1-2 2h-6.5a2 2 0 0 1-2-2v-2.5H8.437A2.939 2.939 0 0 1 5.5 15.562V11.5H3a2 2 0 0 1-2-2Zm2-.5a.5.5 0 0 0-.5.5v6.5a.5.5 0 0 0 .5.5h6.5a.5.5 0 0 0 .5-.5V3a.5.5 0 0 0-.5-.5ZM14.5 14a.5.5 0 0 0-.5.5V21a.5.5 0 0 0 .5.5H21a.5.5 0 0 0 .5-.5v-6.5a.5.5 0 0 0-.5-.5Z"></path> </svg> <div> <div class="color-fg-default h4">Actions</div> Automate any 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0-.25-.25Z"></path><path d="M10 17.75a.75.75 0 0 1 .75-.75h6.5a.75.75 0 0 1 0 1.5h-6.5a.75.75 0 0 1-.75-.75Zm-4 0a.75.75 0 0 1 .75-.75h.5a.75.75 0 0 1 0 1.5h-.5a.75.75 0 0 1-.75-.75Z"></path> </svg> <div> <div class="color-fg-default h4">Codespaces</div> Instant dev environments </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"issues","context":"product","tag":"link","label":"issues_link_product_navbar"}" href="https://github.com/features/issues"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-issue-opened color-fg-subtle mr-3"> <path d="M12 1c6.075 0 11 4.925 11 11s-4.925 11-11 11S1 18.075 1 12 5.925 1 12 1ZM2.5 12a9.5 9.5 0 0 0 9.5 9.5 9.5 9.5 0 0 0 9.5-9.5A9.5 9.5 0 0 0 12 2.5 9.5 9.5 0 0 0 2.5 12Zm9.5 2a2 2 0 1 1-.001-3.999A2 2 0 0 1 12 14Z"></path> </svg> <div> <div class="color-fg-default h4">Issues</div> Plan and track work </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"code_review","context":"product","tag":"link","label":"code_review_link_product_navbar"}" href="https://github.com/features/code-review"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-code-review color-fg-subtle mr-3"> <path d="M10.3 6.74a.75.75 0 0 1-.04 1.06l-2.908 2.7 2.908 2.7a.75.75 0 1 1-1.02 1.1l-3.5-3.25a.75.75 0 0 1 0-1.1l3.5-3.25a.75.75 0 0 1 1.06.04Zm3.44 1.06a.75.75 0 1 1 1.02-1.1l3.5 3.25a.75.75 0 0 1 0 1.1l-3.5 3.25a.75.75 0 1 1-1.02-1.1l2.908-2.7-2.908-2.7Z"></path><path d="M1.5 4.25c0-.966.784-1.75 1.75-1.75h17.5c.966 0 1.75.784 1.75 1.75v12.5a1.75 1.75 0 0 1-1.75 1.75h-9.69l-3.573 3.573A1.458 1.458 0 0 1 5 21.043V18.5H3.25a1.75 1.75 0 0 1-1.75-1.75ZM3.25 4a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h2.5a.75.75 0 0 1 .75.75v3.19l3.72-3.72a.749.749 0 0 1 .53-.22h10a.25.25 0 0 0 .25-.25V4.25a.25.25 0 0 0-.25-.25Z"></path> </svg> <div> <div class="color-fg-default h4">Code Review</div> Manage code changes </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description pb-lg-3" data-analytics-event="{"location":"navbar","action":"discussions","context":"product","tag":"link","label":"discussions_link_product_navbar"}" href="https://github.com/features/discussions"> <svg aria-hidden="true" height="24" viewBox="0 0 24 24" version="1.1" width="24" data-view-component="true" class="octicon octicon-comment-discussion color-fg-subtle mr-3"> <path d="M1.75 1h12.5c.966 0 1.75.784 1.75 1.75v9.5A1.75 1.75 0 0 1 14.25 14H8.061l-2.574 2.573A1.458 1.458 0 0 1 3 15.543V14H1.75A1.75 1.75 0 0 1 0 12.25v-9.5C0 1.784.784 1 1.75 1ZM1.5 2.75v9.5c0 .138.112.25.25.25h2a.75.75 0 0 1 .75.75v2.19l2.72-2.72a.749.749 0 0 1 .53-.22h6.5a.25.25 0 0 0 .25-.25v-9.5a.25.25 0 0 0-.25-.25H1.75a.25.25 0 0 0-.25.25Z"></path><path d="M22.5 8.75a.25.25 0 0 0-.25-.25h-3.5a.75.75 0 0 1 0-1.5h3.5c.966 0 1.75.784 1.75 1.75v9.5A1.75 1.75 0 0 1 22.25 20H21v1.543a1.457 1.457 0 0 1-2.487 1.03L15.939 20H10.75A1.75 1.75 0 0 1 9 18.25v-1.465a.75.75 0 0 1 1.5 0v1.465c0 .138.112.25.25.25h5.5a.75.75 0 0 1 .53.22l2.72 2.72v-2.19a.75.75 0 0 1 .75-.75h2a.25.25 0 0 0 .25-.25v-9.5Z"></path> </svg> <div> <div class="color-fg-default h4">Discussions</div> Collaborate outside of code </div> </a></li> <li> <a class="HeaderMenu-dropdown-link d-block no-underline position-relative py-2 Link--secondary d-flex flex-items-center Link--has-description" data-analytics-event="{"location":"navbar","action":"code_search","context":"product","tag":"link","label":"code_search_link_product_navbar"}" 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data-action=" combobox-commit:query-builder#comboboxCommit mousedown:query-builder#resultsMousedown " data-target="query-builder.resultsList" data-persist-list=false id="query-builder-test-results" ></ul> </div> <div class="FormControl-inlineValidation" id="validation-b0f0743e-9cb3-462a-8b59-93db37a77707" hidden="hidden"> <span class="FormControl-inlineValidation--visual"> <svg aria-hidden="true" height="12" viewBox="0 0 12 12" version="1.1" width="12" data-view-component="true" class="octicon octicon-alert-fill"> <path d="M4.855.708c.5-.896 1.79-.896 2.29 0l4.675 8.351a1.312 1.312 0 0 1-1.146 1.954H1.33A1.313 1.313 0 0 1 .183 9.058ZM7 7V3H5v4Zm-1 3a1 1 0 1 0 0-2 1 1 0 0 0 0 2Z"></path> </svg> </span> <span></span> </div> </div> <div data-target="query-builder.screenReaderFeedback" aria-live="polite" aria-atomic="true" class="sr-only"></div> </query-builder></form> <div class="d-flex flex-row color-fg-muted px-3 text-small color-bg-default search-feedback-prompt"> <a target="_blank" href="https://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax" data-view-component="true" class="Link color-fg-accent text-normal ml-2"> Search syntax tips </a> <div class="d-flex flex-1"></div> </div> </div> </div> </div> </modal-dialog></div> </div> <div data-action="click:qbsearch-input#retract" class="dark-backdrop position-fixed" hidden data-target="qbsearch-input.darkBackdrop"></div> <div class="color-fg-default"> <dialog-helper> <dialog data-target="qbsearch-input.feedbackDialog" data-action="close:qbsearch-input#handleDialogClose cancel:qbsearch-input#handleDialogClose" id="feedback-dialog" aria-modal="true" aria-labelledby="feedback-dialog-title" aria-describedby="feedback-dialog-description" data-view-component="true" class="Overlay Overlay-whenNarrow Overlay--size-medium Overlay--motion-scaleFade Overlay--disableScroll"> <div data-view-component="true" class="Overlay-header"> <div class="Overlay-headerContentWrap"> <div class="Overlay-titleWrap"> <h1 class="Overlay-title " id="feedback-dialog-title"> Provide feedback </h1> </div> <div class="Overlay-actionWrap"> <button data-close-dialog-id="feedback-dialog" aria-label="Close" type="button" data-view-component="true" class="close-button Overlay-closeButton"><svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x"> <path d="M3.72 3.72a.75.75 0 0 1 1.06 0L8 6.94l3.22-3.22a.749.749 0 0 1 1.275.326.749.749 0 0 1-.215.734L9.06 8l3.22 3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path> </svg></button> </div> </div> </div> <scrollable-region data-labelled-by="feedback-dialog-title"> <div data-view-component="true" class="Overlay-body"> </option></form><form id="code-search-feedback-form" data-turbo="false" action="/search/feedback" accept-charset="UTF-8" method="post"><input type="hidden" data-csrf="true" name="authenticity_token" value="DQ6GeHFm5ahy1uS3VJoXWHMqDqOxY6o7YEG574tv/E+QTKHYFPrTPUFeT/XzoaaD4/YbsS8AmM/KplE8ojgMSw==" /> <p>We read every piece of feedback, and take your input very seriously.</p> <textarea name="feedback" class="form-control width-full mb-2" style="height: 120px" id="feedback"></textarea> <input name="include_email" id="include_email" aria-label="Include my email address so I can be contacted" class="form-control mr-2" type="checkbox"> <label for="include_email" style="font-weight: normal">Include my email address so I can be contacted</label> </form></div> </scrollable-region> <div data-view-component="true" class="Overlay-footer Overlay-footer--alignEnd"> <button data-close-dialog-id="feedback-dialog" type="button" data-view-component="true" class="btn"> Cancel </button> <button form="code-search-feedback-form" data-action="click:qbsearch-input#submitFeedback" type="submit" data-view-component="true" class="btn-primary btn"> Submit feedback </button> </div> </dialog></dialog-helper> <custom-scopes data-target="qbsearch-input.customScopesManager"> <dialog-helper> <dialog data-target="custom-scopes.customScopesModalDialog" data-action="close:qbsearch-input#handleDialogClose cancel:qbsearch-input#handleDialogClose" id="custom-scopes-dialog" aria-modal="true" aria-labelledby="custom-scopes-dialog-title" aria-describedby="custom-scopes-dialog-description" data-view-component="true" class="Overlay Overlay-whenNarrow Overlay--size-medium Overlay--motion-scaleFade Overlay--disableScroll"> <div data-view-component="true" class="Overlay-header Overlay-header--divided"> <div class="Overlay-headerContentWrap"> <div class="Overlay-titleWrap"> <h1 class="Overlay-title " id="custom-scopes-dialog-title"> Saved searches </h1> <h2 id="custom-scopes-dialog-description" class="Overlay-description">Use saved searches to filter your results more quickly</h2> </div> <div class="Overlay-actionWrap"> <button data-close-dialog-id="custom-scopes-dialog" aria-label="Close" type="button" data-view-component="true" class="close-button Overlay-closeButton"><svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x"> <path d="M3.72 3.72a.75.75 0 0 1 1.06 0L8 6.94l3.22-3.22a.749.749 0 0 1 1.275.326.749.749 0 0 1-.215.734L9.06 8l3.22 3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path> </svg></button> </div> </div> </div> <scrollable-region data-labelled-by="custom-scopes-dialog-title"> <div data-view-component="true" class="Overlay-body"> <div data-target="custom-scopes.customScopesModalDialogFlash"></div> <div hidden class="create-custom-scope-form" data-target="custom-scopes.createCustomScopeForm"> </option></form><form id="custom-scopes-dialog-form" data-turbo="false" action="/search/custom_scopes" 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class="d-flex flex-items-center flex-wrap mt-0 gh-header-meta"> <div class="flex-shrink-0 mb-2 flex-self-start flex-md-self-center"> <span reviewable_state="ready" title="Status: Open" data-view-component="true" class="State State--open"> <svg height="16" class="octicon octicon-git-pull-request" viewBox="0 0 16 16" version="1.1" width="16" aria-hidden="true"><path d="M1.5 3.25a2.25 2.25 0 1 1 3 2.122v5.256a2.251 2.251 0 1 1-1.5 0V5.372A2.25 2.25 0 0 1 1.5 3.25Zm5.677-.177L9.573.677A.25.25 0 0 1 10 .854V2.5h1A2.5 2.5 0 0 1 13.5 5v5.628a2.251 2.251 0 1 1-1.5 0V5a1 1 0 0 0-1-1h-1v1.646a.25.25 0 0 1-.427.177L7.177 3.427a.25.25 0 0 1 0-.354ZM3.75 2.5a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Zm0 9.5a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Zm8.25.75a.75.75 0 1 0 1.5 0 .75.75 0 0 0-1.5 0Z"></path></svg> Open </span> </div> <div class="flex-auto min-width-0 mb-2"> <a class="author Link--secondary text-bold css-truncate css-truncate-target expandable" data-hovercard-type="user" data-hovercard-url="/users/mb21/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="/mb21">mb21</a> wants to merge <span class="js-updating-pull-request-commits-count">3</span> commits into <span title="mdn/content:main" class="commit-ref css-truncate user-select-contain expandable base-ref"><a title="mdn/content:main" class="no-underline " href="/mdn/content/tree/main"><span class="css-truncate-target">mdn</span>:<span class="css-truncate-target">main</span></a></span><span></span> <div class="commit-ref-dropdown"> <details class="details-reset details-overlay select-menu commitish-suggester" id="branch-select-menu"> <summary class="btn btn-sm select-menu-button branch"> <i>base:</i> <span class="css-truncate css-truncate-target">main</span> </summary> <input-demux-context-wrapper data-context-type="baseChange"> <div class="SelectMenu"> <div class="SelectMenu-modal"> <header class="SelectMenu-header"> <span class="SelectMenu-title">Choose a base branch</span> <button class="SelectMenu-closeButton" type="button" data-toggle-for="branch-select-menu"><svg aria-label="Close menu" aria-hidden="false" role="img" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x"> <path d="M3.72 3.72a.75.75 0 0 1 1.06 0L8 6.94l3.22-3.22a.749.749 0 0 1 1.275.326.749.749 0 0 1-.215.734L9.06 8l3.22 3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path> </svg></button> </header> <input-demux data-action="tab-container-change:input-demux#storeInput tab-container-changed:input-demux#updateInput"> <div class="SelectMenu-filter"> <input data-target="input-demux.source" id="context-commitish-filter-field" class="SelectMenu-input form-control" aria-owns="ref-list-branches" data-controls-ref-menu-id="ref-list-branches" autofocus autocomplete="off" aria-label="Find a branch" placeholder="Find a branch" type="text" > </div> <tab-container class="d-flex flex-column js-branches-tags-tabs" style="min-height: 0;"> <div class="SelectMenu-tabs" role="tablist" data-target="input-demux.control" hidden> <button class="SelectMenu-tab" type="button" role="tab" aria-selected="true">Branches</button> <button class="SelectMenu-tab" type="button" role="tab">Tags</button> </div> <div role="tabpanel" id="ref-list-branches" data-filter-placeholder="Find a branch" tabindex="" class="d-flex flex-column flex-auto"> <ref-selector type="branch" data-targets="input-demux.sinks" data-action=" input-entered:ref-selector#inputEntered tab-selected:ref-selector#tabSelected focus-list:ref-selector#focusFirstListMember " query-endpoint="/mdn/content/refs" cache-key="v0:1732945589.0" current-committish="bWFpbg==" default-branch="bWFpbg==" name-with-owner="bWRuL2NvbnRlbnQ=" prefetch-on-mouseover > <template data-target="ref-selector.fetchFailedTemplate"> <div class="SelectMenu-message" data-index="{{ index }}">Could not load branches</div> </template> <template data-target="ref-selector.noMatchTemplate"> <div class="height-full width-full d-flex flex-items-center pl-3"> <span>Branch not found: <strong>{{ refName }}</strong></span> </div> </template> <div data-target="ref-selector.listContainer" role="menu" class="SelectMenu-list m-0" > <div class="SelectMenu-loading pt-3 pb-0 overflow-hidden"> <span data-view-component="true"> <svg style="box-sizing: content-box; color: var(--color-icon-primary);" width="32" height="32" viewBox="0 0 16 16" fill="none" aria-hidden="true" data-view-component="true" class="anim-rotate"> <circle cx="8" cy="8" r="7" stroke="currentColor" stroke-opacity="0.25" stroke-width="2" vector-effect="non-scaling-stroke" fill="none" /> <path d="M15 8a7.002 7.002 0 00-7-7" stroke="currentColor" stroke-width="2" stroke-linecap="round" vector-effect="non-scaling-stroke" /> </svg> <span class="sr-only">Loading</span> </span> </div> </div> <template data-target="ref-selector.itemTemplate"> <button type="button" class="SelectMenu-item" role="menuitemradio" rel="nofollow" aria-checked="{{ isCurrent }}" data-index="{{ index }}" data-action="click:input-demux-context-wrapper#onItemSelected"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-check SelectMenu-icon SelectMenu-icon--check"> <path d="M13.78 4.22a.75.75 0 0 1 0 1.06l-7.25 7.25a.75.75 0 0 1-1.06 0L2.22 9.28a.751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018L6 10.94l6.72-6.72a.75.75 0 0 1 1.06 0Z"></path> </svg> <span class="flex-1 css-truncate css-truncate-overflow {{ isFilteringClass }} js-ref-name">{{ refName }}</span> <span hidden="{{ isNotDefault }}" class="Label Label--secondary flex-self-start">default</span> </button> </template> </ref-selector> </div> <div role="tabpanel" id="tags-menu" data-filter-placeholder="Find a tag" tabindex="" hidden class="d-flex flex-column flex-auto"> <ref-selector type="tag" data-action=" input-entered:ref-selector#inputEntered tab-selected:ref-selector#tabSelected focus-list:ref-selector#focusFirstListMember " data-targets="input-demux.sinks" query-endpoint="/mdn/content/refs" cache-key="v0:1732945589.0" current-committish="bWFpbg==" default-branch="bWFpbg==" name-with-owner="bWRuL2NvbnRlbnQ=" > <template data-target="ref-selector.fetchFailedTemplate"> <div class="SelectMenu-message" data-index="{{ index }}">Could not load tags</div> </template> <template data-target="ref-selector.noMatchTemplate"> <div class="SelectMenu-message" data-index="{{ index }}">Nothing to show</div> </template> <template data-target="ref-selector.itemTemplate"> <button type="button" class="SelectMenu-item" role="menuitemradio" rel="nofollow" aria-checked="{{ isCurrent }}" data-index="{{ index }}" data-action="click:input-demux-context-wrapper#onItemSelected"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-check SelectMenu-icon SelectMenu-icon--check"> <path d="M13.78 4.22a.75.75 0 0 1 0 1.06l-7.25 7.25a.75.75 0 0 1-1.06 0L2.22 9.28a.751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018L6 10.94l6.72-6.72a.75.75 0 0 1 1.06 0Z"></path> </svg> <span class="flex-1 css-truncate css-truncate-overflow {{ isFilteringClass }} js-ref-name">{{ refName }}</span> <span hidden="{{ isNotDefault }}" class="Label Label--secondary flex-self-start">default</span> </button> </template> <div data-target="ref-selector.listContainer" role="menu" class="SelectMenu-list" > <div class="SelectMenu-loading pt-3 pb-0 overflow-hidden"> <span data-view-component="true"> <svg style="box-sizing: content-box; color: var(--color-icon-primary);" width="32" height="32" viewBox="0 0 16 16" fill="none" aria-hidden="true" data-view-component="true" class="anim-rotate"> <circle cx="8" cy="8" r="7" stroke="currentColor" stroke-opacity="0.25" stroke-width="2" vector-effect="non-scaling-stroke" fill="none" /> <path d="M15 8a7.002 7.002 0 00-7-7" stroke="currentColor" stroke-width="2" stroke-linecap="round" vector-effect="non-scaling-stroke" /> </svg> <span class="sr-only">Loading</span> </span> </div> </div> </ref-selector> </div> </tab-container> </input-demux> </div> </div> <template class="js-change-base-template"> <div class="Box-header"> <h3 class="Box-title">Are you sure you want to change the base?</h3> </div> <div class="Box-body"> Some commits from the old base branch may be removed from the timeline, and old review comments may become outdated. </div> <div class="Box-footer"> <button form="change-base-form" type="submit" data-view-component="true" class="btn-block js-change-base-form-button Button--primary Button--medium Button"> <span class="Button-content"> <span class="Button-label"><span data-view-component="true"> <svg style="display: none" width="16" height="16" viewBox="0 0 16 16" fill="none" aria-hidden="true" data-view-component="true" class="js-change-base-spinner v-align-text-bottom mr-1 anim-rotate"> <circle cx="8" cy="8" r="7" stroke="currentColor" stroke-opacity="0.25" stroke-width="2" vector-effect="non-scaling-stroke" fill="none" /> <path d="M15 8a7.002 7.002 0 00-7-7" stroke="currentColor" stroke-width="2" stroke-linecap="round" vector-effect="non-scaling-stroke" /> </svg> <span class="sr-only">Loading</span> </span> <span>Change base</span></span> </span> </button> </div> </template> </input-demux-context-wrapper> </details> </option></form><form id="change-base-form" data-turbo="false" action="/mdn/content/pull/36979/change_base" accept-charset="UTF-8" method="post"><input type="hidden" data-csrf="true" name="authenticity_token" value="r9SI9PAbujc2SSq2UKBDqveLSX9SMKU6x7xMAhDqGfVNnwy0ANf2oFG+z3/bpTPnj67SPWhDFkm7FQ13I85qLw==" /> <input type="hidden" id="pull-change-base-branch-field" name="new_base_binary" class="js-new-base-branch"> </form> </div> from <span title="mb21/content:patch-2" class="commit-ref css-truncate user-select-contain expandable head-ref"><a title="mb21/content:patch-2" class="no-underline " href="/mb21/content/tree/patch-2"><span class="css-truncate-target">mb21</span>:<span class="css-truncate-target">patch-2</span></a></span><span><span data-view-component="true"> <clipboard-copy aria-label="Copy" data-copy-feedback="Copied!" value="mb21:patch-2" data-view-component="true" class="Link--onHover js-copy-branch color-fg-muted d-inline-block ml-1"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-copy"> <path d="M0 6.75C0 5.784.784 5 1.75 5h1.5a.75.75 0 0 1 0 1.5h-1.5a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-1.5a.75.75 0 0 1 1.5 0v1.5A1.75 1.75 0 0 1 9.25 16h-7.5A1.75 1.75 0 0 1 0 14.25Z"></path><path d="M5 1.75C5 .784 5.784 0 6.75 0h7.5C15.216 0 16 .784 16 1.75v7.5A1.75 1.75 0 0 1 14.25 11h-7.5A1.75 1.75 0 0 1 5 9.25Zm1.75-.25a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25Z"></path> </svg> <svg style="display: none;" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-check color-fg-success"> <path d="M13.78 4.22a.75.75 0 0 1 0 1.06l-7.25 7.25a.75.75 0 0 1-1.06 0L2.22 9.28a.751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018L6 10.94l6.72-6.72a.75.75 0 0 1 1.06 0Z"></path> </svg> </clipboard-copy> <div aria-live="polite" aria-atomic="true" class="sr-only" data-clipboard-copy-feedback></div> </span></span> <span class="d-inline-block"> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/primer-react-765944243383.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/octicons-react-45c3a19dd792.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_emotion_is-prop-valid_dist_emotion-is-prop-valid_esm_js-node_modules_emo-37e3d5-31653d7f2342.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_github_mini-throttle_dist_index_js-node_modules_stacktrace-parser_dist_s-e7dcdd-285fc29e9fa5.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/vendors-node_modules_oddbird_popover-polyfill_dist_popover-fn_js-4896ddd4b7bb.js"></script> <script crossorigin="anonymous" defer="defer" type="application/javascript" src="https://github.githubassets.com/assets/pull-requests-processing-indicator-73452fe0d2fe.js"></script> <link crossorigin="anonymous" media="all" rel="stylesheet" href="https://github.githubassets.com/assets/primer-react.9fa170e9435ed4b922b9.module.css" /> <react-partial partial-name="pull-requests-processing-indicator" data-ssr="false" data-attempted-ssr="false" > <script type="application/json" data-target="react-partial.embeddedData">{"props":{"processingIndicatorUrl":"/mdn/content/pull/36979/partials/processing_indicator","repositoryId":295774370,"pullRequestId":2200277288}}</script> <div data-target="react-partial.reactRoot"></div> </react-partial> </span> </div> </div> <div class="js-sticky js-sticky-offset-scroll top-0 gh-header-sticky"> <div class="sticky-content"> <div class="d-flex flex-items-center flex-justify-between mt-2"> <div class="d-flex flex-row flex-items-center min-width-0"> <div class="mr-2 mb-2 flex-shrink-0"> <span reviewable_state="ready" title="Status: Open" data-view-component="true" class="State State--open"> <svg height="16" class="octicon octicon-git-pull-request" viewBox="0 0 16 16" version="1.1" width="16" aria-hidden="true"><path d="M1.5 3.25a2.25 2.25 0 1 1 3 2.122v5.256a2.251 2.251 0 1 1-1.5 0V5.372A2.25 2.25 0 0 1 1.5 3.25Zm5.677-.177L9.573.677A.25.25 0 0 1 10 .854V2.5h1A2.5 2.5 0 0 1 13.5 5v5.628a2.251 2.251 0 1 1-1.5 0V5a1 1 0 0 0-1-1h-1v1.646a.25.25 0 0 1-.427.177L7.177 3.427a.25.25 0 0 1 0-.354ZM3.75 2.5a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Zm0 9.5a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Zm8.25.75a.75.75 0 1 0 1.5 0 .75.75 0 0 0-1.5 0Z"></path></svg> Open </span> </div> <div class="min-width-0 mr-2 mb-2"> <h1 class="d-flex text-bold f5"> <a class="js-issue-title css-truncate css-truncate-target Link--primary width-fit markdown-title js-smoothscroll-anchor" href="#top"> Using custom elements: make Safari implementation stance clear </a> <span class="gh-header-number color-fg-muted pl-1">#36979</span> </h1> <div class="meta color-fg-muted css-truncate css-truncate-target d-block width-fit"> <a class="author Link--secondary text-bold css-truncate css-truncate-target expandable" data-hovercard-z-index-override="111" data-hovercard-type="user" data-hovercard-url="/users/mb21/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="/mb21">mb21</a> wants to merge <span class="js-updating-pull-request-commits-count">3</span> commits into <span title="mdn/content:main" class="commit-ref css-truncate user-select-contain expandable "><a title="mdn/content:main" class="no-underline " href="/mdn/content/tree/main"><span class="css-truncate-target">mdn</span>:<span class="css-truncate-target">main</span></a></span><span></span> from <span title="mb21/content:patch-2" class="commit-ref css-truncate user-select-contain expandable head-ref"><a title="mb21/content:patch-2" class="no-underline " href="/mb21/content/tree/patch-2"><span class="css-truncate-target">mb21</span>:<span class="css-truncate-target">patch-2</span></a></span><span><span data-view-component="true"> <clipboard-copy aria-label="Copy" data-copy-feedback="Copied!" value="mb21:patch-2" data-view-component="true" class="Link--onHover js-copy-branch color-fg-muted d-inline-block ml-1"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-copy"> <path d="M0 6.75C0 5.784.784 5 1.75 5h1.5a.75.75 0 0 1 0 1.5h-1.5a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-1.5a.75.75 0 0 1 1.5 0v1.5A1.75 1.75 0 0 1 9.25 16h-7.5A1.75 1.75 0 0 1 0 14.25Z"></path><path d="M5 1.75C5 .784 5.784 0 6.75 0h7.5C15.216 0 16 .784 16 1.75v7.5A1.75 1.75 0 0 1 14.25 11h-7.5A1.75 1.75 0 0 1 5 9.25Zm1.75-.25a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25Z"></path> </svg> <svg style="display: none;" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-check color-fg-success"> <path d="M13.78 4.22a.75.75 0 0 1 0 1.06l-7.25 7.25a.75.75 0 0 1-1.06 0L2.22 9.28a.751.751 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8a7.002 7.002 0 00-7-7" stroke="currentColor" stroke-width="2" stroke-linecap="round" vector-effect="non-scaling-stroke" /> </svg> <span class="sr-only">Loading</span> </span> </include-fragment> </details-menu> </details> </span> </div> </h3> </div> <div> <div class="edit-comment-hide"> <task-lists disabled sortable> <div class="comment-body markdown-body js-comment-body soft-wrap css-overflow-wrap-anywhere user-select-contain d-block"> <h3 dir="auto">Description</h3> <p dir="auto"><a href="https://developer.mozilla.org/en-US/docs/Web/API/Web_components/Using_custom_elements" rel="nofollow">Using custom elements</a> page: make Safari implementation stance of customized built-in elements clear</p> <h3 dir="auto">Motivation</h3> <p dir="auto">The previous text was very opaque for an introductory page meant to make people familiar with custom elements:</p> <ul dir="auto"> <li>not clear what the <code class="notranslate">is</code> attribute is and why I should care as the reader at that point</li> <li>not clear that a major browser is never going to implement this (it sounded more like implementation is just not finished yet)</li> </ul> <h3 dir="auto">Additional details</h3> <p dir="auto">I would also be in favour of moving "customized built-in elements" to its own subsection instead of starting this page with the big heading "Types of custom elements", if in reality most people will only ever implement or encounter one of the types, because the other one is not going to be supported by Safari and might eventually be replaced with something else.</p> <p dir="auto">If people here agree, I can make a separate PR for that?</p> </div> </task-lists> </div> </div> </option></form><form class="js-comment-update" id="issue-2693625207-edit-form" data-type="json" data-turbo="false" action="/mdn/content/issues/36979" accept-charset="UTF-8" method="post"><input type="hidden" name="_method" value="put" autocomplete="off" /><input type="hidden" name="authenticity_token" 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data-gid="C_kwDOK_2kD9oAKDExOWRkYzMzZTg4NWEyNDAwOWRiMmM2NmI1Yzk4NmZiOWNkZWM5Y2I"> <div> <div > <div data-view-component="true" class="TimelineItem TimelineItem--condensed"> <div data-view-component="true" class="TimelineItem-badge"><svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-git-commit"> <path d="M11.93 8.5a4.002 4.002 0 0 1-7.86 0H.75a.75.75 0 0 1 0-1.5h3.32a4.002 4.002 0 0 1 7.86 0h3.32a.75.75 0 0 1 0 1.5Zm-1.43-.75a2.5 2.5 0 1 0-5 0 2.5 2.5 0 0 0 5 0Z"></path> </svg></div> <div data-view-component="true" class="TimelineItem-body"> <div class="js-details-container Details js-socket-channel js-updatable-content"> <div class="d-flex flex-md-row flex-column"> <div class="d-flex flex-auto"> <div class="AvatarStack flex-self-start " > <div class="AvatarStack-body" > <a class="avatar avatar-user" style="width:20px;height:20px;" data-test-selector="commits-avatar-stack-avatar-link" data-hovercard-type="user" data-hovercard-url="/users/mb21/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="/mb21"> <img data-test-selector="commits-avatar-stack-avatar-image" src="https://avatars.githubusercontent.com/u/157497?s=40&v=4" width="20" height="20" alt="@mb21" class=" avatar-user" /> </a> </div> </div> <div class="pr-1 flex-auto min-width-0" > <code> <a title="Using custom elements: make Safari implementation stance clear" data-pjax="true" class="Link--secondary markdown-title" href="/mdn/content/pull/36979/commits/119ddc33e885a24009db2c66b5c986fb9cdec9cb">Using custom elements: make Safari implementation stance clear</a> </code> </div> <div class="pr-1 d-md-inline-block d-none"> <batch-deferred-content class="d-inline-block" data-url="/commits/badges"> <input type="hidden" name="id" value="C_kwDOK_2kD9oAKDExOWRkYzMzZTg4NWEyNDAwOWRiMmM2NmI1Yzk4NmZiOWNkZWM5Y2I" data-targets="batch-deferred-content.inputs" autocomplete="off" /> 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<td class="d-block comment-body markdown-body js-comment-body"> <p dir="auto"><b>Preview URLs</b></p> <ul dir="auto"> <li><a href="https://pr36979.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Web_components/Using_custom_elements" rel="nofollow"><code class="notranslate">/en-US/docs/Web/API/Web_components/Using_custom_elements</code></a></li> </ul> <details><summary><b>External URLs</b> (2)</summary> <p dir="auto">URL: <a href="https://pr36979.content.dev.mdn.mozit.cloud/en-US/docs/Web/API/Web_components/Using_custom_elements" rel="nofollow"><code class="notranslate">/en-US/docs/Web/API/Web_components/Using_custom_elements</code></a><br> Title: <code class="notranslate">Using custom elements</code></p> <ul dir="auto"> <li><span class="reference"><svg class="octicon octicon-issue-opened open mr-1" title="Open" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="M8 9.5a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Z"></path><path d="M8 0a8 8 0 1 1 0 16A8 8 0 0 1 8 0ZM1.5 8a6.5 6.5 0 1 0 13 0 6.5 6.5 0 0 0-13 0Z"></path></svg><a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="1895019368" data-permission-text="Title is private" data-url="https://github.com/WICG/webcomponents/issues/1029" data-hovercard-type="issue" data-hovercard-url="/WICG/webcomponents/issues/1029/hovercard" href="https://github.com/WICG/webcomponents/issues/1029">Proposal: Custom attributes for all elements, enhancements for more complex use cases<span class="issue-shorthand"> WICG/webcomponents#1029</span></a></span> (1 time) (Note! This may be a new URL 👀)</li> <li><span class="reference"><svg class="octicon octicon-issue-closed closed mr-1" title="Closed" viewBox="0 0 16 16" version="1.1" width="16" height="16" aria-hidden="true"><path d="M11.28 6.78a.75.75 0 0 0-1.06-1.06L7.25 8.69 5.78 7.22a.75.75 0 0 0-1.06 1.06l2 2a.75.75 0 0 0 1.06 0l3.5-3.5Z"></path><path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0Zm-1.5 0a6.5 6.5 0 1 0-13 0 6.5 6.5 0 0 0 13 0Z"></path></svg><a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="1466203664" data-permission-text="Title is private" data-url="https://github.com/WebKit/standards-positions/issues/97" data-hovercard-type="issue" data-hovercard-url="/WebKit/standards-positions/issues/97/hovercard" href="https://github.com/WebKit/standards-positions/issues/97">Customized built-in elements<span class="issue-shorthand"> WebKit/standards-positions#97</span></a></span> (1 time) (Note! This may be a new URL 👀)</li> </ul> </details> <p dir="auto"><em>(comment last updated: 2024-11-27 07:19:43)</em></p> </td> </tr> </tbody> </table> </task-lists> <div class="d-flex"> <div class="pr-review-reactions"> <div data-view-component="true" class="comment-reactions js-reactions-container js-reaction-buttons-container social-reactions reactions-container d-none"> </option></form><form class="js-pick-reaction" data-turbo="false" action="/mdn/content/reactions" accept-charset="UTF-8" method="post"><input type="hidden" name="_method" value="put" autocomplete="off" /><input type="hidden" name="authenticity_token" value="veqHZsUhzyXfT42xWDUmEAtCG7OfGg0Xbd7x65z3oobvWg8hZdXPt2T-6SKdPXaPk6uFLVpy9GoAKzninBMfwg" autocomplete="off" /> <input type="hidden" name="input[subjectId]" value="IC_kwDOEaEoos6VAd2r"> <input type="hidden" name="input[context]" value="" > <div class="js-comment-reactions-options d-flex flex-items-center flex-row flex-wrap"> <div class="js-reactions-container"> <details class="dropdown details-reset details-overlay d-inline-block js-all-reactions-popover" hidden> <summary aria-haspopup="true" data-view-component="true" class="Button--link Button--medium Button"> <span class="Button-content"> <span class="Button-label">All reactions</span> </span> </summary> <ul class="dropdown-menu dropdown-menu-se"> </ul> </details> </div> </div> </form></div> </div> </div> </div> </option></form><form class="js-comment-update" id="issuecomment-2499927467-edit-form" data-turbo="false" action="/mdn/content/issue_comments/2499927467" accept-charset="UTF-8" method="post"><input type="hidden" name="_method" value="put" autocomplete="off" /><input type="hidden" data-csrf="true" name="authenticity_token" value="B6S4++KQDCbzSxfivdra3aMa+PX++WJ1pMvGcTYhZwBvj3QfyuxE6nM5ER7tw4qt9xPFcRvYwa2qcdhfIfMyKQ==" /> <include-fragment loading="lazy" src="/mdn/content/issue_comments/2499927467/edit_form?textarea_id=issuecomment-2499927467-body&comment_context=" class="previewable-comment-form js-comment-edit-form-deferred-include-fragment" > <p class="text-center mt-3" data-hide-on-error> <span data-view-component="true"> <svg aria-label="Loading..." style="box-sizing: content-box; 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height:14px; margin-bottom:-4px;"></span> </batch-deferred-content> </div> <div class="pr-1 flex-shrink-0" style="width: 16px;"> <div class="js-socket-channel js-updatable-content" data-channel="eyJjIjoicmVwbzoyOTU3NzQzNzA6Y29tbWl0OjJhMDEwYThkNDc0NWJhZmMxYjgxNjg0MDI0NGIwMmI2MjAwNmRhZGIiLCJ0IjoxNzMyOTY3MDg0fQ==--fa7e6ed08b09eb47361aec06137d99a359fe1196a6600f0e490dfda1ddda8c8a" data-url="/mdn/content/pull/36979/partials/commit_status_icon?oid=2a010a8d4745bafc1b816840244b02b62006dadb"> <batch-deferred-content class="d-inline-block" data-url="/mdn/content/commits/checks-statuses-rollups"> <input type="hidden" name="oid" value="2a010a8d4745bafc1b816840244b02b62006dadb" data-targets="batch-deferred-content.inputs" autocomplete="off" /> <input type="hidden" name="dropdown_direction" value="w" data-targets="batch-deferred-content.inputs" autocomplete="off" /> <input type="hidden" name="disable_live_updates" value="false" data-targets="batch-deferred-content.inputs" autocomplete="off" /> <div class="commit-build-statuses"> <span class="Skeleton d-inline-block" style="width:12px; height:12px;"></span> </div> </batch-deferred-content> </div> </div> <div class="text-right ml-1"> <code> <a href="/mdn/content/pull/36979/commits/2a010a8d4745bafc1b816840244b02b62006dadb" class="Link--secondary">2a010a8</a> </code> </div> </div> </div> </div> </div> </div> <div data-view-component="true" class="TimelineItem TimelineItem--condensed"> <div data-view-component="true" class="TimelineItem-badge"><svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-git-commit"> <path d="M11.93 8.5a4.002 4.002 0 0 1-7.86 0H.75a.75.75 0 0 1 0-1.5h3.32a4.002 4.002 0 0 1 7.86 0h3.32a.75.75 0 0 1 0 1.5Zm-1.43-.75a2.5 2.5 0 1 0-5 0 2.5 2.5 0 0 0 5 0Z"></path> </svg></div> <div data-view-component="true" class="TimelineItem-body"> <div class="js-details-container Details js-socket-channel js-updatable-content"> <div class="d-flex flex-md-row flex-column"> <div class="d-flex flex-auto"> <div class="AvatarStack flex-self-start " > <div class="AvatarStack-body" > <a class="avatar avatar-user" style="width:20px;height:20px;" data-test-selector="commits-avatar-stack-avatar-link" data-hovercard-type="user" data-hovercard-url="/users/mb21/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="/mb21"> <img data-test-selector="commits-avatar-stack-avatar-image" src="https://avatars.githubusercontent.com/u/157497?s=40&v=4" width="20" height="20" alt="@mb21" class=" avatar-user" /> </a> </div> </div> <div class="pr-1 flex-auto min-width-0" > <code> <a title="Update index.md" data-pjax="true" class="Link--secondary markdown-title" href="/mdn/content/pull/36979/commits/192c834b528cf4bd3af8946eee6e05bd9d72e90b">Update index.md</a> </code> </div> <div class="pr-1 d-md-inline-block d-none"> <batch-deferred-content class="d-inline-block" data-url="/commits/badges"> <input type="hidden" name="id" value="C_kwDOK_2kD9oAKDE5MmM4MzRiNTI4Y2Y0YmQzYWY4OTQ2ZWVlNmUwNWJkOWQ3MmU5MGI" data-targets="batch-deferred-content.inputs" autocomplete="off" /> <input type="hidden" name="badge_size" value="small" data-targets="batch-deferred-content.inputs" autocomplete="off" /> <input type="hidden" name="dropdown_direction" value="s" data-targets="batch-deferred-content.inputs" autocomplete="off" /> <span class="Skeleton d-inline-block mr-1" style="width:75px; height:14px; margin-bottom:-4px;"></span> </batch-deferred-content> </div> <div class="pr-1 flex-shrink-0" style="width: 16px;"> <div class="js-socket-channel js-updatable-content" data-channel="eyJjIjoicmVwbzoyOTU3NzQzNzA6Y29tbWl0OjE5MmM4MzRiNTI4Y2Y0YmQzYWY4OTQ2ZWVlNmUwNWJkOWQ3MmU5MGIiLCJ0IjoxNzMyOTY3MDg0fQ==--2a65b397e05158a0285448b3d1f2c915e08ef0541fc96b09ec61ee4e8d4b1069" data-url="/mdn/content/pull/36979/partials/commit_status_icon?oid=192c834b528cf4bd3af8946eee6e05bd9d72e90b"> <batch-deferred-content class="d-inline-block" data-url="/mdn/content/commits/checks-statuses-rollups"> <input type="hidden" name="oid" value="192c834b528cf4bd3af8946eee6e05bd9d72e90b" data-targets="batch-deferred-content.inputs" autocomplete="off" /> <input type="hidden" name="dropdown_direction" value="w" data-targets="batch-deferred-content.inputs" autocomplete="off" /> <input type="hidden" name="disable_live_updates" value="false" data-targets="batch-deferred-content.inputs" autocomplete="off" /> <div class="commit-build-statuses"> <span class="Skeleton d-inline-block" style="width:12px; height:12px;"></span> </div> </batch-deferred-content> </div> </div> <div class="text-right ml-1"> <code> <a href="/mdn/content/pull/36979/commits/192c834b528cf4bd3af8946eee6e05bd9d72e90b" class="Link--secondary">192c834</a> </code> </div> </div> </div> </div> </div> </div> </div> </div> </div> <div class="js-timeline-item js-timeline-progressive-focus-container" data-gid="RRE_lADOEaEoos6gjXV3zwAAAAOZ6I9e"> <div id="event-15467056990" data-view-component="true" class="TimelineItem js-targetable-element"> <div data-view-component="true" class="TimelineItem-badge"><svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-eye"> <path d="M8 2c1.981 0 3.671.992 4.933 2.078 1.27 1.091 2.187 2.345 2.637 3.023a1.62 1.62 0 0 1 0 1.798c-.45.678-1.367 1.932-2.637 3.023C11.67 13.008 9.981 14 8 14c-1.981 0-3.671-.992-4.933-2.078C1.797 10.83.88 9.576.43 8.898a1.62 1.62 0 0 1 0-1.798c.45-.677 1.367-1.931 2.637-3.022C4.33 2.992 6.019 2 8 2ZM1.679 7.932a.12.12 0 0 0 0 .136c.411.622 1.241 1.75 2.366 2.717C5.176 11.758 6.527 12.5 8 12.5c1.473 0 2.825-.742 3.955-1.715 1.124-.967 1.954-2.096 2.366-2.717a.12.12 0 0 0 0-.136c-.412-.621-1.242-1.75-2.366-2.717C10.824 4.242 9.473 3.5 8 3.5c-1.473 0-2.825.742-3.955 1.715-1.124.967-1.954 2.096-2.366 2.717ZM8 10a2 2 0 1 1-.001-3.999A2 2 0 0 1 8 10Z"></path> </svg></div> <div data-view-component="true" class="TimelineItem-body"> <a class="d-inline-block" data-test-selector="pr-timeline-events-actor-avatar" data-hovercard-type="user" data-hovercard-url="/users/mb21/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="/mb21"><img class="avatar avatar-user" src="https://avatars.githubusercontent.com/u/157497?s=40&v=4" width="20" height="20" alt="@mb21" /></a> <a class="author Link--primary text-bold" data-test-selector="pr-timeline-events-actor-profile-link" data-hovercard-type="user" data-hovercard-url="/users/mb21/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="/mb21">mb21</a> requested a review from <a data-hovercard-type="user" data-hovercard-url="/users/bsmth/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="/bsmth"><span class="Link--primary text-bold">bsmth</span></a> <a href="#event-15467056990" data-view-component="true" class="css-truncate css-truncate-target Link--secondary Link"> <relative-time tense="past" datetime="2024-11-28T15:25:29Z" data-view-component="true">November 28, 2024 15:25</relative-time> </a> </div> </div> </div>  <div id="partial-timeline" class="js-timeline-marker js-socket-channel js-updatable-content" data-channel="eyJjIjoicHVsbF9yZXF1ZXN0OjIyMDAyNzcyODgiLCJ0IjoxNzMyOTY3MDg0fQ==--67a9982933dd77089f29c90f66123f13729d1cfba6f8103a35ef895124a6cb4a" data-url="/mdn/content/pull/36979/partials/unread_timeline?since=2024-11-28T07%3A25%3A29.000000000-08%3A00" data-channel-event-name="timeline_updated" data-last-modified="2024-11-28T07:25:29.000000000-08:00" data-gid="PR_kwDOEaEoos6DJZEo"> </option></form><form class="d-none js-timeline-marker-form" data-turbo="false" action="/_graphql/MarkNotificationSubjectAsRead" accept-charset="UTF-8" data-remote="true" method="post"><input type="hidden" data-csrf="true" name="authenticity_token" value="FWs/o+R1SiMAmUFJRjrVArlsGdU+znAdxiYywINYUTPAnZbjDPC5IN5It9PmhTyubyouDQDx5N8jk1gEFOqFrA==" /> <input type="hidden" name="variables[subjectId]" value="PR_kwDOEaEoos6DJZEo"> </form> </div> </div> <div class="discussion-timeline-actions"> <div id="issue-comment-box"> <div data-view-component="true" class="flash flash-warn mt-3"> <a rel="nofollow" class="btn btn-primary" data-hydro-click="{"event_type":"authentication.click","payload":{"location_in_page":"signed out comment","repository_id":295774370,"auth_type":"SIGN_UP","originating_url":"https://github.com/mdn/content/pull/36979","user_id":null}}" data-hydro-click-hmac="005ef1862d9088db035b50acb8d0ac731d51ae059b99b0707a25291dbbfd58c4" href="/join?source=comment-repo">Sign up for free</a> <strong>to join this conversation on GitHub</strong>. 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