Catch exceptions thrown Object.defineProperty

Related issue:
- https://github.com/uBlockOrigin/uAssets/issues/9883

Related commit:
- a9e6f9c72c

assets/resources/scriptlets.js

@@ -932,21 +932,24 @@
                 prevSetter = odesc.set;
             }
         }
-        Object.defineProperty(owner, prop, {
+        try {
-            configurable,
+            Object.defineProperty(owner, prop, {
-            get() {
+                configurable,
-                if ( prevGetter !== undefined ) {
+                get() {
-                    prevGetter();
+                    if ( prevGetter !== undefined ) {
+                        prevGetter();
+                    }
+                    return handler.getter(); // cValue
+                },
+                set(a) {
+                    if ( prevSetter !== undefined ) {
+                        prevSetter(a);
+                    }
+                    handler.setter(a);
                 }
-                return handler.getter(); // cValue
+            });
-            },
+        } catch(ex) {
-            set(a) {
+        }
-                if ( prevSetter !== undefined ) {
-                    prevSetter(a);
-                }
-                handler.setter(a);
-            }
-        });
     };
     const trapChain = function(owner, chain) {
         const pos = chain.indexOf('.');