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April 26, 2024 14:26
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Use this proxy by appending the URL you want to access to the base URL of this proxy. For example: https://our-corsproxy.site/https://somewhere.hates.cors/some-path?somequery=param
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| export default { | |
| async fetch(request) { | |
| function usageResponse() { | |
| const usageHtml = `<!DOCTYPE html> | |
| <html> | |
| <head><title>CORS Proxy Service</title></head> | |
| <body> | |
| <h1>CORS Proxy Usage</h1> | |
| <p>Use this proxy by appending the URL you want to access to the base URL of this proxy. For example:</p> | |
| <code>https://our-corsproxy.site/https://somewhere.hates.cors/some-path?somequery=param</code> | |
| </body> | |
| </html>`; | |
| return new Response(usageHtml, { | |
| headers: { | |
| "content-type": "text/html;charset=UTF-8", | |
| }, | |
| }); | |
| } | |
| const url = new URL(request.url); | |
| const pathname = url.pathname; | |
| const origin = request.headers.get("Origin"); | |
| if (request.method === 'OPTIONS') { | |
| return new Response(null, { | |
| headers: { | |
| "Access-Control-Allow-Origin": origin ? origin : "*", | |
| "Access-Control-Allow-Methods": "GET, HEAD, POST, OPTIONS", | |
| "Access-Control-Allow-Headers": "Content-Type, x-functions-key, Authorization", | |
| "Access-Control-Max-Age": "86400", | |
| } | |
| }); | |
| } | |
| if (pathname === '/') { | |
| return usageResponse(); | |
| } | |
| const apiUrl = pathname.substring(1); | |
| try { | |
| const proxyRequest = new Request(apiUrl, request); | |
| proxyRequest.headers.set("Origin", new URL(apiUrl).origin); | |
| let response = await fetch(proxyRequest); | |
| response = new Response(response.body, response); | |
| response.headers.set("Access-Control-Allow-Origin", origin ? origin : "*"); | |
| response.headers.set("Access-Control-Allow-Headers", "Content-Type, x-functions-key, Authorization"); | |
| response.headers.set("Access-Control-Allow-Methods", "GET, HEAD, POST, OPTIONS"); | |
| return response; | |
| } catch (e) { | |
| return new Response(`Fetch Error: ${e.message}`, { | |
| status: 500 | |
| }); | |
| } | |
| } | |
| }; |
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