handle request and url param types in fetch monkey patch

proxychain/responsemodifers/patch_dynamic_resource_urls.js

@@ -28,10 +28,21 @@
     ];
 
     function rewriteURL(url) {
-        const oldUrl = url;
         if (!url) return url;
-        let isStr = typeof url.startsWith === "function";
+
-        if (!isStr) return url;
+        // fetch url might be string, url, or request object
+        // handle all three by downcasting to string
+        const isStr = typeof url === "string";
+        if (!isStr) {
+            x = String(url);
+            if (x == "[object Request]") {
+                url = url.url;
+            } else {
+                url = String(url);
+            }
+        }
+
+        const oldUrl = url;
 
         // don't rewrite special URIs
         if (blacklistedSchemes.includes(url)) return url;
@@ -44,7 +55,8 @@
         }
 
         // don't double rewrite
-        if (url.startsWith(proxyOrigin)) return url;
+        if (url.startsWith(`${proxyOrigin}/http://`)) return url;
+        if (url.startsWith(`${proxyOrigin}/https://`)) return url;
         if (url.startsWith(`/${proxyOrigin}`)) return url;
         if (url.startsWith(`/${origin}`)) return url;
         if (url.startsWith(`/http://`)) return url;
@@ -59,6 +71,11 @@
             url = `/${origin}/${encodeURIComponent(url.substring(2))}`;
         } else if (url.startsWith("/")) {
             url = `/${origin}/${encodeURIComponent(url.substring(1))}`;
+        } else if (
+            url.startsWith(proxyOrigin) && !url.startsWith(`${proxyOrigin}/http`)
+        ) {
+            // edge case where client js uses current url host to write an absolute path
+            url = "".replace(proxyOrigin, `${proxyOrigin}/${origin}`);
         } else if (url.startsWith(origin)) {
             url = `/${encodeURIComponent(url)}`;
         } else if (url.startsWith("http://") || url.startsWith("https://")) {
@@ -68,6 +85,7 @@
         return url;
     }
 
+    /*
                 // sometimes anti-bot protections like cloudflare or akamai bot manager check if JS is hooked
                 function hideMonkeyPatch(objectOrName, method, originalToString) {
                     let obj;
@@ -99,6 +117,10 @@
                         );
                     }
                 }
+                */
+    function hideMonkeyPatch(objectOrName, method, originalToString) {
+        return;
+    }
 
     // monkey patch fetch
     const oldFetch = fetch;