Implement managed browser security, individual agents and observability

apps/browser/request-source.cjs

@@ -0,0 +1,14 @@
+'use strict';
+// A new top-level GET belongs to the live native tab, not the document it leaves.
+// Data-bearing requests still belong to the exact original document generation.
+function requestSourceCurrent({details,source,token,registry,currentDocument}){
+  try{
+    if(!token)return !(details.webContentsId>0);
+    if(details.resourceType==='mainFrame'&&details.method==='GET'&&!(details.uploadData?.length)){
+      const contents=token.webContents;
+      return !!source&&source.guarded===true&&source.view.webContents===contents&&!contents.isDestroyed()&&registry.fromContents(details.webContentsId)===source;
+    }
+    return currentDocument(token);
+  }catch{return false;}
+}
+module.exports={requestSourceCurrent};