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Cloudflare</h2> <div class="sl-flex astro-75f4fhkp"><input type="radio" id="section1" name="sections" checked class="astro-75f4fhkp"> <input type="radio" id="section2" name="sections" class="astro-75f4fhkp"> <input type="radio" id="section3" name="sections" class="astro-75f4fhkp"> <input type="radio" id="section4" name="sections" class="astro-75f4fhkp"> <input type="radio" id="section5" name="sections" class="astro-75f4fhkp"> <div class="tryit-sidebar astro-75f4fhkp"> <article class="card sl-flex astro-v5tidmuc"> <p class="title sl-flex astro-v5tidmuc"><span class="astro-v5tidmuc"></span></p> <div class="body astro-v5tidmuc"> <div class="*:block *:p-2 *:rounded astro-75f4fhkp"><label for="section1" id="section1Label" class="astro-75f4fhkp"> <strong class="astro-75f4fhkp">Return HTML</strong> </label> <label for="section2" id="section2Label" class="astro-75f4fhkp"> <strong class="astro-75f4fhkp">Return JSON</strong> </label> <label for="section3" id="section3Label" class="astro-75f4fhkp"> <strong class="astro-75f4fhkp">Fetch HTML</strong> </label> <label for="section4" id="section4Label" class="astro-75f4fhkp"> <strong class="astro-75f4fhkp">Redirect</strong> </label> <label for="section5" id="section5Label" class="astro-75f4fhkp"> <strong class="astro-75f4fhkp">Respond with another site</strong> </label> </div> </div> </article> </div> <div class="tryit-code ml-8 w-full !mt-0 astro-75f4fhkp"> <div id="section1Content" class="!mt-0 hidden astro-75f4fhkp"> <div class="expressive-code"> <link rel="stylesheet" href="/_astro/ec.jmw5e.css"> <script type="module" src="/_astro/ec.8zarh.js"></script> <figure class="frame not-content"> <figcaption class="header"></figcaption> <pre data-language="js"><code> <div class="ec-line"> <div class="code"> <span style="--0:#EE9080;--1:#8F1500">export</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#EE9080;--1:#8F1500">default</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">async</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#57C78F;--1:#00783C">fetch</span><span style="--0:#89DDFF;--1:#007474">(</span><span style="--0:#B59EE1;--1:#7C008F">request</span><span style="--0:#89DDFF;--1:#007474">)</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">const</span><span style="--0:#EE9080;--1:#32008F"> </span><span style="--0:#EEFFFF;--1:#00268F">html</span><span style="--0:#EE9080;--1:#32008F"> </span><span style="--0:#EE9080;--1:#8F1500">=</span><span style="--0:#EE9080;--1:#32008F"> </span><span style="--0:#FDDA68;--1:#A84E00">`<!DOCTYPE html></span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#FDDA68;--1:#A84E00"> </span></span><span style="--0:#FDDA68;--1:#A84E00"><body></span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#FDDA68;--1:#A84E00"> </span></span><span style="--0:#FDDA68;--1:#A84E00"><h1>Hello World</h1></span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#FDDA68;--1:#A84E00"> </span></span><span style="--0:#FDDA68;--1:#A84E00"><p>This markup was generated by a Cloudflare Worker.</p></span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#FDDA68;--1:#A84E00"> </span></span><span style="--0:#FDDA68;--1:#A84E00"></body>`</span><span style="--0:#89DDFF;--1:#007474">;</span> </div> </div> <div class="ec-line"> <div class="code"> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">return</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#EE9080;--1:#8F1500">new</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#57C78F;--1:#00783C">Response</span><span style="--0:#EEFFFF;--1:#62676A">(</span><span style="--0:#D5D7D8;--1:#8F1500">html</span><span style="--0:#89DDFF;--1:#007474">,</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#EEFFFF;--1:#62676A"> </span></span><span style="--0:#EEFFFF;--1:#62676A">headers</span><span style="--0:#89DDFF;--1:#007474">:</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#FDDA68;--1:#A84E00">"content-type"</span><span style="--0:#89DDFF;--1:#007474">:</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#FDDA68;--1:#A84E00">"text/html;charset=UTF-8"</span><span style="--0:#89DDFF;--1:#007474">,</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#89DDFF;--1:#007474">},</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#89DDFF;--1:#007474">}</span><span style="--0:#EEFFFF;--1:#62676A">)</span><span style="--0:#89DDFF;--1:#007474">;</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#89DDFF;--1:#007474">},</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#89DDFF;--1:#007474">};</span> </div> </div></code></pre> <div class="copy"> <button title="Copy to clipboard" data-copied="Copied!" data-code="export default { async fetch(request) { const html = `<!DOCTYPE html> <body> <h1>Hello World</h1> <p>This markup was generated by a Cloudflare Worker.</p> </body>`; return new Response(html, { headers: { "content-type": "text/html;charset=UTF-8", }, }); },};"> <div></div></button> </div><a class="run" href="https://translate.google.com/website?sl=pl&tl=en&hl=en-GB&u=https://workers.cloudflare.com/playground%23LYVwNgLglgDghgJwgegGYHsHALQBM4RwDcABAEbogB2%2BCAngLzbPYZb6HbW5QDGU2AAwBOACzCA7AA4AzMICMAVgBMwgFwsWbYBzhcafASPHS5S1QFgAUAGF0VCAFMH2ACJQAzjHQeo0e2ok2ngExCRUcMCODABEUDSOAB4AdABWHjGkqFBgzpHRcQkp6THWdg7OENgAKnQwjoFwMDBgfARQ9sipcABucB68CLAQANTA6LjgjtbWSd5IJLiOqHDgECQA3lYkJP10VLxBjhC8ABYAFAiOAI4gjh4QAJSb2zskvPYPJKcQwGAkDBIAAMADwAQlcAHkbNUAJoABQAot9fmAAHyvHYgii4OgYt5vEGneRogASjjAYHQJAA6pgwLgQchifiCSQQTA0dVTp4SMBEABrEAwEgAd36JAA5s5HAgCI5cOQ6LsSDYqSBcKgwIhHLTMALZckmZzMezkDi8UCiFZTVcICAEFRwo5RSQAEr3bxUDyOc4-P4AGhebO%2BjjgSwQHkCWxDOxiHwqLggdUcMUCMSciRQ-rARDOiB9EAYAFVqgAxbBSGIB007AC%2BNYJdce1vrNbrRGsmmY2l0%2Bh4-CEYkksgUKmEZXsThc7i8Pj8HSogWCulIESisSihF0mSCOTyG5iZCpZFKtinlRqKcazVavHanXS9hmVg2MX58QA%2BuNJrk04UlmKDI6y7bte1CftDCHExR3MYRmCAA" target="__blank"><span>Run Worker in Playground</span></a> </figure> </div> </div> <div id="section2Content" class="!mt-0 hidden astro-75f4fhkp"> <div class="expressive-code"> <link rel="stylesheet" href="/_astro/ec.jmw5e.css"> <script type="module" src="/_astro/ec.8zarh.js"></script> <figure class="frame not-content"> <figcaption class="header"></figcaption> <pre data-language="js"><code> <div class="ec-line"> <div class="code"> <span style="--0:#EE9080;--1:#8F1500">export</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#EE9080;--1:#8F1500">default</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">async</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#57C78F;--1:#00783C">fetch</span><span style="--0:#89DDFF;--1:#007474">(</span><span style="--0:#B59EE1;--1:#7C008F">request</span><span style="--0:#89DDFF;--1:#007474">)</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">const</span><span style="--0:#EE9080;--1:#32008F"> </span><span style="--0:#EEFFFF;--1:#00268F">data</span><span style="--0:#EE9080;--1:#32008F"> </span><span style="--0:#EE9080;--1:#8F1500">=</span><span style="--0:#EE9080;--1:#32008F"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#EE9080;--1:#32008F"> </span></span><span style="--0:#EE9080;--1:#32008F">hello</span><span style="--0:#89DDFF;--1:#007474">:</span><span style="--0:#EE9080;--1:#32008F"> </span><span style="--0:#FDDA68;--1:#A84E00">"world"</span><span style="--0:#89DDFF;--1:#007474">,</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#89DDFF;--1:#007474">};</span> </div> </div> <div class="ec-line"> <div class="code"> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">return</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#EEFFFF;--1:#00268F">Response</span><span style="--0:#89DDFF;--1:#007474">.</span><span style="--0:#57C78F;--1:#00783C">json</span><span style="--0:#EEFFFF;--1:#62676A">(</span><span style="--0:#D5D7D8;--1:#8F1500">data</span><span style="--0:#EEFFFF;--1:#62676A">)</span><span style="--0:#89DDFF;--1:#007474">;</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#89DDFF;--1:#007474">},</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#89DDFF;--1:#007474">};</span> </div> </div></code></pre> <div class="copy"> <button title="Copy to clipboard" data-copied="Copied!" data-code="export default { async fetch(request) { const data = { hello: "world", }; return Response.json(data); },};"> <div></div></button> </div><a class="run" href="https://translate.google.com/website?sl=pl&tl=en&hl=en-GB&u=https://workers.cloudflare.com/playground%23LYVwNgLglgDghgJwgegGYHsHALQBM4RwDcABAEbogB2%2BCAngLzbPYZb6HbW5QDGU2AAwBWAOyiALACYpggIwBmYQA4AXCxZtgHOFxp8BI8dNmKVAWABQAYXRUIAU3vYAIlADOMdO6jQ7qki08AmISKjhgBwYAIigaBwAPADoAK3do0lQoMCcIqNj45LToq1t7JwhsABU6GAcAuBgYMD4CKDtkFLgANzh3XgRYCABqYHRccAcrK0SvJBJcB1Q4cAgSAG9LEhI%2BuipeQIcIXgALAAoEBwBHEAd3CABKDa3tkl47e4WQkgZn19eTg4wGB0AFogB3TBgXDRAA0L22AF8iJYESRLhAQAgqCQAEp3LxUdwOVLuOxnHQPFFI%2BHIqwaZhaHR6Hj8IRiSQyeRKZSlOyOZxuTzeXztKgBII6UjhSIxSKEHQZQLZXKy6JkEFkEo2fkVaq1eo7JotXhtDppOzTSzraLAOBxAD6YwmOWiqgKiyK6UR9IZTJCLIM7OMXLMymYQA" target="__blank"><span>Run Worker in Playground</span></a> </figure> </div> </div> <div id="section3Content" class="!mt-0 hidden astro-75f4fhkp"> <div class="expressive-code"> <link rel="stylesheet" href="/_astro/ec.jmw5e.css"> <script type="module" src="/_astro/ec.8zarh.js"></script> <figure class="frame not-content"> <figcaption class="header"></figcaption> <pre data-language="js"><code> <div class="ec-line"> <div class="code"> <span style="--0:#EE9080;--1:#8F1500">export</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#EE9080;--1:#8F1500">default</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">async</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#57C78F;--1:#00783C">fetch</span><span style="--0:#89DDFF;--1:#007474">(</span><span style="--0:#B59EE1;--1:#7C008F">request</span><span style="--0:#89DDFF;--1:#007474">)</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#A9A9A5;--0fs:italic;--1:#62676A;--1fs:italic">/**</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#A9A9A5;--0fs:italic;--1:#62676A;--1fs:italic"> </span></span><span style="--0:#A9A9A5;--0fs:italic;--1:#62676A;--1fs:italic">* Replace `remote` with the host you wish to send requests to</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#A9A9A5;--0fs:italic;--1:#62676A;--1fs:italic"> </span></span><span style="--0:#A9A9A5;--0fs:italic;--1:#62676A;--1fs:italic">*/</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">const</span><span style="--0:#EE9080;--1:#32008F"> </span><span style="--0:#EEFFFF;--1:#00268F">remote</span><span style="--0:#EE9080;--1:#32008F"> </span><span style="--0:#EE9080;--1:#8F1500">=</span><span style="--0:#EE9080;--1:#32008F"> </span><span style="--0:#FDDA68;--1:#A84E00">"https://example.com"</span><span style="--0:#89DDFF;--1:#007474">;</span> </div> </div> <div class="ec-line"> <div class="code"> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">return</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#EE9080;--1:#8F1500">await</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#57C78F;--1:#00783C">fetch</span><span style="--0:#EEFFFF;--1:#62676A">(</span><span style="--0:#D5D7D8;--1:#8F1500">remote</span><span style="--0:#89DDFF;--1:#007474">,</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#D5D7D8;--1:#8F1500">request</span><span style="--0:#EEFFFF;--1:#62676A">)</span><span style="--0:#89DDFF;--1:#007474">;</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#89DDFF;--1:#007474">},</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#89DDFF;--1:#007474">};</span> </div> </div></code></pre> <div class="copy"> <button title="Copy to clipboard" data-copied="Copied!" data-code="export default { async fetch(request) { /** * Replace `remote` with the host you wish to send requests to */ const remote = "https://example.com"; return await fetch(remote, request); },};"> <div></div></button> </div><a class="run" href="https://translate.google.com/website?sl=pl&tl=en&hl=en-GB&u=https://workers.cloudflare.com/playground%23LYVwNgLglgDghgJwgegGYHsHALQBM4RwDcABAEbogB2%2BCAngLzbPYZb6HbW5QDGU2AAyCArABYAHAHYATAEYJMmWIBcLFm2Ac4XGnwHDx0%2BYuUBYAFABhdFQgBTO9gAiUAM4x0bqNFsqSmngExCRUcMD2DABEUDT2AB4AdABWblGkqFBgjuGRMXFJqVGWNnaOENgAKnQw9v5wMDBgfARQtsjJcABucG68CLAQANTA6Ljg9paWCZ5IJLj2qHDgECQA3hYkJL10VLwB9hC8ABYAFAj2AI4g9m4QAJTrm1skyABUb88vbyQASvZNOC8ewkAAGF1GDlBJAA7j5jiQIMcQccvKs6JRYe4ERB0CQ3I5cCQLtdbhA3Ij0F8tm9kNTeLY7sT7JCQQwSFFjhAIDA3CpkMgEuEmvZEgzgOkLNSLhAQAgqNsYXAfAcjmcIegHAAaZmku73IjPAC%2BWosRqIlnUzE02l0PH4QlEklkCiUYhKtgcTlcHi8PjaVH8gW0pDCEWiEUI2nSASyOXDUTIYHQZGK1k95SqNTq20azV4rXaqVsUwsayiwGVVAA%2BqNxtkoip8gtCmkjZarTbgnb9I6jC7TGJmEA" target="__blank"><span>Run Worker in Playground</span></a> </figure> </div> </div> <div id="section4Content" class="!mt-0 hidden astro-75f4fhkp"> <div class="expressive-code"> <link rel="stylesheet" href="/_astro/ec.jmw5e.css"> <script type="module" src="/_astro/ec.8zarh.js"></script> <figure class="frame not-content"> <figcaption class="header"></figcaption> <pre data-language="js"><code> <div class="ec-line"> <div class="code"> <span style="--0:#EE9080;--1:#8F1500">export</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#EE9080;--1:#8F1500">default</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">async</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#57C78F;--1:#00783C">fetch</span><span style="--0:#89DDFF;--1:#007474">(</span><span style="--0:#B59EE1;--1:#7C008F">request</span><span style="--0:#89DDFF;--1:#007474">)</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">const</span><span style="--0:#EE9080;--1:#32008F"> </span><span style="--0:#EEFFFF;--1:#00268F">destinationURL</span><span style="--0:#EE9080;--1:#32008F"> </span><span style="--0:#EE9080;--1:#8F1500">=</span><span style="--0:#EE9080;--1:#32008F"> </span><span style="--0:#FDDA68;--1:#A84E00">"https://example.com"</span><span style="--0:#89DDFF;--1:#007474">;</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">const</span><span style="--0:#EE9080;--1:#32008F"> </span><span style="--0:#EEFFFF;--1:#00268F">statusCode</span><span style="--0:#EE9080;--1:#32008F"> </span><span style="--0:#EE9080;--1:#8F1500">=</span><span style="--0:#EE9080;--1:#32008F"> </span><span style="--0:#B59EE1;--1:#7C008F">301</span><span style="--0:#89DDFF;--1:#007474">;</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">return</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#EEFFFF;--1:#00268F">Response</span><span style="--0:#89DDFF;--1:#007474">.</span><span style="--0:#57C78F;--1:#00783C">redirect</span><span style="--0:#EEFFFF;--1:#62676A">(</span><span style="--0:#D5D7D8;--1:#8F1500">destinationURL</span><span style="--0:#89DDFF;--1:#007474">,</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#D5D7D8;--1:#8F1500">statusCode</span><span style="--0:#EEFFFF;--1:#62676A">)</span><span style="--0:#89DDFF;--1:#007474">;</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#89DDFF;--1:#007474">},</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#89DDFF;--1:#007474">};</span> </div> </div></code></pre> <div class="copy"> <button title="Copy to clipboard" data-copied="Copied!" data-code="export default { async fetch(request) { const destinationURL = "https://example.com"; const statusCode = 301; return Response.redirect(destinationURL, statusCode); },};"> <div></div></button> </div><a class="run" href="https://translate.google.com/website?sl=pl&tl=en&hl=en-GB&u=https://workers.cloudflare.com/playground%23LYVwNgLglgDghgJwgegGYHsHALQBM4RwDcABAEbogB2%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-S6owG0zCZhAA" target="__blank"><span>Run Worker in Playground</span></a> </figure> </div> </div> <div id="section5Content" class="!mt-0 hidden astro-75f4fhkp"> <div class="expressive-code"> <link rel="stylesheet" href="/_astro/ec.jmw5e.css"> <script type="module" src="/_astro/ec.8zarh.js"></script> <figure class="frame not-content"> <figcaption class="header"></figcaption> <pre data-language="js"><code> <div class="ec-line"> <div class="code"> <span style="--0:#EE9080;--1:#8F1500">export</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#EE9080;--1:#8F1500">default</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">async</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#57C78F;--1:#00783C">fetch</span><span style="--0:#89DDFF;--1:#007474">(</span><span style="--0:#B59EE1;--1:#7C008F">request</span><span style="--0:#89DDFF;--1:#007474">)</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">async</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#EE9080;--1:#8F1500">function</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#57C78F;--1:#00783C">MethodNotAllowed</span><span style="--0:#89DDFF;--1:#007474">(</span><span style="--0:#B59EE1;--1:#7C008F">request</span><span style="--0:#89DDFF;--1:#007474">)</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">return</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#EE9080;--1:#8F1500">new</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#57C78F;--1:#00783C">Response</span><span style="--0:#EEFFFF;--1:#62676A">(</span><span style="--0:#FDDA68;--1:#A84E00">`Method </span><span style="--0:#89DDFF;--1:#007474">${</span><span style="--0:#EEFFFF;--1:#00268F">request</span><span style="--0:#89DDFF;--1:#007474">.</span><span style="--0:#EEFFFF;--1:#00268F">method</span><span style="--0:#89DDFF;--1:#007474">}</span><span style="--0:#FDDA68;--1:#A84E00"> not allowed.`</span><span style="--0:#89DDFF;--1:#007474">,</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#EEFFFF;--1:#62676A"> </span></span><span style="--0:#EEFFFF;--1:#62676A">status</span><span style="--0:#89DDFF;--1:#007474">:</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#B59EE1;--1:#7C008F">405</span><span style="--0:#89DDFF;--1:#007474">,</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#EEFFFF;--1:#62676A"> </span></span><span style="--0:#EEFFFF;--1:#62676A">headers</span><span style="--0:#89DDFF;--1:#007474">:</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#89DDFF;--1:#007474">{</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"><span style="--0:#EEFFFF;--1:#62676A"> </span></span><span style="--0:#EEFFFF;--1:#62676A">Allow</span><span style="--0:#89DDFF;--1:#007474">:</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#FDDA68;--1:#A84E00">"GET"</span><span style="--0:#89DDFF;--1:#007474">,</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#89DDFF;--1:#007474">},</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#89DDFF;--1:#007474">}</span><span style="--0:#EEFFFF;--1:#62676A">)</span><span style="--0:#89DDFF;--1:#007474">;</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#89DDFF;--1:#007474">}</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#A9A9A5;--0fs:italic;--1:#62676A;--1fs:italic">// Only GET requests work with this proxy.</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">if</span><span style="--0:#EEFFFF;--1:#62676A"> (</span><span style="--0:#EEFFFF;--1:#00268F">request</span><span style="--0:#89DDFF;--1:#007474">.</span><span style="--0:#EEFFFF;--1:#00268F">method</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#EE9080;--1:#8F1500">!==</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#FDDA68;--1:#A84E00">"GET"</span><span style="--0:#EEFFFF;--1:#62676A">) </span><span style="--0:#EE9080;--1:#8F1500">return</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#57C78F;--1:#00783C">MethodNotAllowed</span><span style="--0:#EEFFFF;--1:#62676A">(</span><span style="--0:#D5D7D8;--1:#8F1500">request</span><span style="--0:#EEFFFF;--1:#62676A">)</span><span style="--0:#89DDFF;--1:#007474">;</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#EE9080;--1:#8F1500">return</span><span style="--0:#EEFFFF;--1:#62676A"> </span><span style="--0:#57C78F;--1:#00783C">fetch</span><span style="--0:#EEFFFF;--1:#62676A">(</span><span style="--0:#FDDA68;--1:#A84E00">`https://example.com`</span><span style="--0:#EEFFFF;--1:#62676A">)</span><span style="--0:#89DDFF;--1:#007474">;</span> </div> </div> <div class="ec-line"> <div class="code"> <span class="indent"> </span><span style="--0:#89DDFF;--1:#007474">},</span> </div> </div> <div class="ec-line"> <div class="code"> <span style="--0:#89DDFF;--1:#007474">};</span> </div> </div></code></pre> <div class="copy"> <button title="Copy to clipboard" data-copied="Copied!" data-code="export default { async fetch(request) { async function MethodNotAllowed(request) { return new Response(`Method ${request.method} not allowed.`, { status: 405, headers: { Allow: "GET", }, }); } // Only GET requests work with this proxy. if (request.method !== "GET") return MethodNotAllowed(request); return fetch(`https://example.com`); },};"> <div></div></button> </div><a class="run" href="https://translate.google.com/website?sl=pl&tl=en&hl=en-GB&u=https://workers.cloudflare.com/playground%23LYVwNgLglgDghgJwgegGYHsHALQBM4RwDcABAEbogB2%2BCAngLzbPYZb6HbW5QDGU2AAwBWACwBOcQEZBogBwA2BQGYAXCxZtgHOFxp8BIidNmKVAWABQAYXRUIAU3vYAIlADOMdO6jQ7qki08AmISKjhgBwYAIigaBwAPADoAK3do0lQoMCcIqNj45LToq1t7JwhsABU6GAcAuBgYMD4CKDtkFLgANzh3XgRYCABqYHRccAcrK0SvJBJcB1Q4cAgSAG9LEhI%2BuipeQIcIXgALAAoEBwBHEAd3CABKDa3tnfc9g9RqXj8qEgBZI4ncYAOXQEAAgmAwOgAO4OXAXa63e5PTavV6XCAgBB-KgOWEkABKdy8VHcDjOAANARBgbgSAASdaXG53CBJSJ08YAXzC4J20LhCKSVIANM8MRj7gQQO4AqIRGKXlKSCcHHBFgh5ZLVa8oTDYQFogBxACiVWiyr1JB51qlPIeRBVtpdyGQJAA8lQwHQSOaqiRWSiIO4SLDMABrcO%2BE4kOkeEgwBDoBJ0JIuqCoEhItn3TlA8YkACEDAYJFNFuiTyxOL%2BtPpYMhQvhiOD7KdLtruMOx3OVJOEAgMHl7sSEWaDiSvHQwCpne2dssPKIVg0zC0Oj0PH4QjEkhk8iUylKdkczjcnm8vnaVACQR0pHCkRiXM1IQygWyuRf0TIMLIEobDPCpqlqeodiaFpeDaDo0jsaZLHWaJgDgOIAH0xgmHJolUApFiKdIeTXddNxCbcDD3YxDzMZRmCAA" target="__blank"><span>Run Worker in Playground</span></a> </figure> </div> </div> </div> </div> <div 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src="/_astro/developer-platform-dark.ChPufHpV_2oIQYs.svg" alt="Developer Platform section image" class="light:sl-hidden" width="728" height="262" loading="lazy" decoding="async"> <h2>Developer Platform</h2><span><p>The Cloudflare Developer Platform provides a serverless execution environment that allows you to create entirely new applications or augment existing ones without configuring or maintaining infrastructure.</p></span> </div> <div class="w-full"> <div class="[&>article]:gap-0"> <article class="card sl-flex astro-v5tidmuc"> <p class="title sl-flex astro-v5tidmuc"><span class="astro-v5tidmuc"></span></p> <div class="body astro-v5tidmuc"> <div style="position: relative; padding-top: 56.25%"><iframe src="https://customer-1mwganm1ma0xgnmj.cloudflarestream.com/d89f290431f98e551f2b1467f85d6561/iframe?preload=true&letterboxColor=transparent&poster=https%3A%2F%2Fpub-d9bf66e086fb4b639107aa52105b49dd.r2.dev%2Fcloudflare-stack.jpg" style="border: none; position: absolute; top: 0; left: 0; 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