Add --vanilla flag, strip csp on mainFrame only

src/patcher.ts

@@ -42,6 +42,7 @@ require.main!.filename = join(asarPath, discordPkg.main);
 // @ts-ignore Untyped method? Dies from cringe
 app.setAppPath(asarPath);
 
+if (!process.argv.includes("--vanilla")) {
     // Repatch after host updates on Windows
     if (process.platform === "win32")
         require("./patchWin32Updater");
@@ -121,19 +122,22 @@ electron.app.whenReady().then(() => {
             }
         }
 
-    electron.session.defaultSession.webRequest.onHeadersReceived(({ responseHeaders, url }, cb) => {
+        electron.session.defaultSession.webRequest.onHeadersReceived(({ responseHeaders, resourceType }, cb) => {
             if (responseHeaders) {
+                if (resourceType === "mainFrame")
                     patchCsp(responseHeaders, "content-security-policy");
-            patchCsp(responseHeaders, "content-security-policy-report-only");
 
-            // Fix hosts that don't properly set the content type, such as
+                // Fix hosts that don't properly set the css content type, such as
                 // raw.githubusercontent.com
-            if (url.endsWith(".css"))
+                if (resourceType === "stylesheet")
                     responseHeaders["content-type"] = ["text/css"];
             }
             cb({ cancel: false, responseHeaders });
         });
     });
+} else {
+    console.log("[Vencord] Running in vanilla mode. Not loading Vencord");
+}
 
 console.log("[Vencord] Loading original Discord app.asar");
 // Legacy Vencord Injector requires "../app.asar". However, because we