tweak: make sure to clear lowercase authorization header

Author: rekram1-node

index.mjs

@@ -9,7 +9,23 @@ export async function CopilotAuthPlugin({ client }) {
     "Editor-Plugin-Version": "copilot-chat/0.32.4",
     "Copilot-Integration-Id": "vscode-chat",
   };
-  const RESPONSES_API_ALTERNATE_INPUT_TYPES = ["file_search_call", "computer_call", "computer_call_output", "web_search_call", "function_call", "function_call_output", "image_generation_call", "code_interpreter_call", "local_shell_call", "local_shell_call_output", "mcp_list_tools", "mcp_approval_request", "mcp_approval_response", "mcp_call", "reasoning"];
+  const RESPONSES_API_ALTERNATE_INPUT_TYPES = [
+    "file_search_call",
+    "computer_call",
+    "computer_call_output",
+    "web_search_call",
+    "function_call",
+    "function_call_output",
+    "image_generation_call",
+    "code_interpreter_call",
+    "local_shell_call",
+    "local_shell_call_output",
+    "mcp_list_tools",
+    "mcp_approval_request",
+    "mcp_approval_response",
+    "mcp_call",
+    "reasoning",
+  ];
 
   function normalizeDomain(url) {
     return url.replace(/^https?:\/\//, "").replace(/\/$/, "");
@@ -106,14 +122,18 @@ export async function CopilotAuthPlugin({ client }) {
                 );
               }
 
-              if(body?.input) {
+              if (body?.input) {
                 const lastInput = body.input[body.input.length - 1];
 
                 const isAssistant = lastInput?.role === "assistant";
-                const hasAgentType = lastInput?.type ? RESPONSES_API_ALTERNATE_INPUT_TYPES.includes(lastInput.type) : false;
+                const hasAgentType = lastInput?.type
+                  ? RESPONSES_API_ALTERNATE_INPUT_TYPES.includes(lastInput.type)
+                  : false;
                 isAgentCall = isAssistant || hasAgentType;
 
-                isVisionRequest = Array.isArray(lastInput?.content) && lastInput.content.some((part) => part.type === "input_image");
+                isVisionRequest =
+                  Array.isArray(lastInput?.content) &&
+                  lastInput.content.some((part) => part.type === "input_image");
               }
             } catch {}
             const headers = {
@@ -126,7 +146,10 @@ export async function CopilotAuthPlugin({ client }) {
             if (isVisionRequest) {
               headers["Copilot-Vision-Request"] = "true";
             }
+
             delete headers["x-api-key"];
+            delete headers["authorization"];
+
             return fetch(input, {
               ...init,
               headers,