Issue 5954 - Read-only properties cannot be assigned in strict mode in Edge

polyfill.js

Index: polyfill.js
===================================================================
--- a/polyfill.js
+++ b/polyfill.js
@@ -69,8 +69,12 @@
     let func = object[name];
     if (!func)
       return;
-
-    object[name] = function(...args)
+    let descriptor = Object.getOwnPropertyDescriptor(object, name);
+    // Some descriptors like setUninstallURL are in fact accessor descriptors.

[kzar, 2017/11/10 14:16:14]

Nit: This comment doesn't read too well and I don't think it adds much, maybe
just remove it?

+    // We convert them to data descriptors.
+    delete descriptor["get"];
+    delete descriptor["set"];
+    descriptor.value = function(...args)
     {
       let callStack = new Error().stack;
 
@@ -111,6 +115,7 @@
         });
       });
     };
+    Object.defineProperty(object, name, descriptor);
   }
 
   function shouldWrapAPIs()