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@@ -5,7 +5,7 @@ const scopeSym = SafeSymbol.unscopables;
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const globalDesc = createNullObj();
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/** Original ~50 global functions such as setTimeout that some sites override.
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* Not saving all globals because it would waste a lot of time on each page and frame. */
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-const globalFunctionDesc = assign(createNullObj(), builtinFuncs);
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+const globalFunctionDesc = createNullObj();
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const globalKeysSet = FastLookup();
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const globalKeys = (function makeGlobalKeys() {
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const kWrappedJSObject = 'wrappedJSObject';
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@@ -17,8 +17,6 @@ const globalKeys = (function makeGlobalKeys() {
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let desc;
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let v;
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for (const key of names) {
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- if (key in builtinFuncs)
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- continue;
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if (+key >= 0 && key < numFrames
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|| isContentMode && (
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key === process.env.INIT_FUNC_NAME || key === 'browser' || key === 'chrome'
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@@ -30,7 +28,7 @@ const globalKeys = (function makeGlobalKeys() {
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/* Saving built-in global descriptors except constructors and onXXX events,
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checking length>=3 to prevent calling String.prototype index getters */
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if (key >= 'a' && key <= 'z' && (key.length < 3 || key[0] !== 'o' || key[1] !== 'n')
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- && (desc = describeProperty(window, key))) {
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+ && (desc = builtinFuncs[key] || describeProperty(window, key))) {
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setPrototypeOf(desc, null); // to read desc.XXX without calling Object.prototype getters
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(desc.enumerable && isFunction(desc.value)
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? globalFunctionDesc
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tophf