Twitch.TV - Window Resize Events Cause JavaScript Exceptions

Site Outreach Issue #8512708


Adam V.
Aug 17, 2016
This issue is public.
Found in
  • Microsoft Edge
Found in build #
Reported by 1 person

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Steps to reproduce


  1. Browse to a stream. I like to watch Super Mario Maker by Vellhart. The stream you watch does not actually matter, just pull one up.
  2. Open the developer tools, go to console.
  3. Attempt to resize the window.


SCRIPT438: Object doesn't support property or method 'otherWidth'
emberapp-3fb8098ca61364deeb9f6c7a5756eb9d.js (52,29477)

While the property otherWidth probably isn’t a standard property on a DOM object, clearly Twitch’s JavaScript blows up during window resizing regardless.

Bonus Observation:

Having the FrankerFacez extension, taken from Chrome, you are able to modify Twitch’s appearance to put the chat frame below the video frame upon the window hitting a size threshold. Well the feature stops working due to this bug. I have attached the extremely simple extension (basically bootstraps injecting JavaScript from a CDN).


This problem did not occur until I installed the Windows 10 Insider Release Preview for Cumulative Update to 14393.82. Previous CUs did not have this problem.


1 attachment

Comments and activity

  • Microsoft Edge Team

    Changed Assigned To to “Ibrahim O.”

  • Might have been a coincidence of Twitch introducing a JavaScript bug in their code and me updating Windows. Sorry, it works fine now!

  • Microsoft Edge Team

    Changed Status to “Site Outreach”

  • Thank you for the update. We will close the bug as External and we continue to welcome more feedback and look forward to hearing from you again soon.

    Best regards,
    The MS Edge Team

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