return the correct headers object

README.md

@@ -6,6 +6,9 @@ This is an experimental port of [libcurl](https://curl.se/libcurl/) to WebAssemb
 - Fetch compatible API
 - End to end encryption between the browser and the destination server
 - Support for up to TLS 1.3
+- Support for tunneling HTTP/2 connections 
+- Bypass CORS restrictions
+- Low latency via multiplexing and reusing open connections
 
 ## Building:
 You can build this project by running the following commands:
@@ -70,7 +73,7 @@ This project is licensed under the GNU AGPL v3.
 
 ### Copyright Notice:
 ```
-ading2210/libcurl.js - A port of libcurl to WASM
+ading2210/libcurl.js - A port of libcurl to WASM for the browser.
 Copyright (C) 2023 ading2210
 
 This program is free software: you can redistribute it and/or modify

client/fragments/silence_socket.js

@@ -4,6 +4,6 @@ err\("__syscall_getsockname " ?\+ ?fd\);
 
 
 /* INSERT
-function _emscripten_console_error\(str\) {
+function _emscripten_console_error\(str\) ?{
 */
 if (UTF8ToString(str).endsWith("__syscall_setsockopt\\n")) return;

client/main.js

@@ -122,6 +122,7 @@ function create_response(response_data, response_info) {
   response_info.ok = response_info.status >= 200 && response_info.status < 300;
   response_info.statusText = status_messages[response_info.status] || "";
 
+  //construct base response object
   let response_obj = new Response(response_data, response_info);
   for (let key in response_info) {
     if (key == "headers") continue;
@@ -130,6 +131,13 @@ function create_response(response_data, response_info) {
       value: response_info[key]
     });
   }
+
+  //create headers object
+  Object.defineProperty(response_obj, "headers", {
+    writable: false,
+    value: new Headers(response_info.headers)
+  });
+  
   return response_obj;
 }
 

client/patcher.py

@@ -16,6 +16,9 @@ for fragment_file in fragments_path.iterdir():
   matches = re.findall(match_regex, fragment_text, re.S)
 
   for mode, patch_regex, patch_text, _ in matches:
+    fragment_matches = re.findall(patch_regex, target_text)
+    if not fragment_matches:
+      print(f"warning: regex did not match anything - '{patch_regex}'");
     if mode == "DELETE":
       target_text = re.sub(patch_regex, "", target_text)
     elif mode == "REPLACE":