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Object.prototype.toString() is overridden and behaves incorrectly

See original GitHub issue

After updating to version 0.9, the Object.prototype.toString.call( undefined ) returns [Object Window] instead of [Object Undefined] when the strict mode isn’t turned on.

The root of this bug is caused by this line:

https://github.com/angular/zone.js/pull/734/files#diff-7cf54420c5bf443f7d3575ad72ac1de3R44

where this refers to the Window in non-strict mode.

Issue Analytics

State:
Created 4 years ago
Reactions:8
Comments:24 (8 by maintainers)

Top GitHub Comments

10reactions

graphicsxpcommented, Jun 27, 2019

When this fix will be released through npm ?

6reactions

cristhiankcommented, May 30, 2019

I found two workarounds:

1- Add the .js to the import in the pollyfills.ts in the Angular app:

2- Disable the toString patching as specified in:

https://github.com/angular/zone.js/blob/master/MODULE.md

I added the following to the pollyfills.ts in the Angular app:

__Zone_disable_toString = true; // Zone will not patch Function.prototype.toString

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