some youtube video have no sound using edge or ie 11

Confirmed Issue #12007489 • Assigned to Nishant N.


steve p.
May 12, 2017
This issue is public.
Found in
  • Microsoft Edge
  • Internet Explorer
Found in build #
Reported by 1 person

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Steps to reproduce

in edge and ie 11. some youtube video have no sound.


video on the youtube site:

using f12 dev tool in console script 7002 xmlhttp request: network error. 0x80004004

tried emulation does not change the issue.

video play but no sound.
using static scan: We’ve found that this webpage may be using browser detection techniques to determine how the webpage should render across many different versions of browsers.

We’ve found that this webpage may have missing vendor-specific prefixes or may have implemented vendor-specific prefixes when they are not required in common CSS properties. This may cause compatibility problems with how this webpage renders across different browsers.

The URL we scanned is not using modern HTML5 input types. If you have a form, double check if you can use any of those to improve your users’ experience.

The URL we scanned is not using any technique to load content in advance to improve browsing performance.

Some of the img tags we found at this URL do not have an alt attribute. Adding alt attribute tags will make this page more accessible.

The URL we scanned is not using the “prev” and “next” link relations. These attributes help search engines and browsers better understand the hiearchy of your website content and enable new features to improve the browser experience of your visitors like Flip ahead browsing.

why does some video sound does not work on youtube? and give the script error 7002.

I am also using add blocker abp. is it that some code for the sound get mix in with the add and the sound content is block?

in the last month I have seen around 10 video on youtube that does this and have no sound. always same script error 7002.


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    Comments and activity

    • Changed Steps to Reproduce

    • Microsoft Edge Team

      Changed Assigned To to “Venkat K.”

    • I was thinging about this if ie11 does it also and there is no ads blocker abp on it like edge. then it is not the ads blocker. that block the bad script and the sound. could it be the sound format use on some video? like ie use mp3 but not wav or ogg. in the youtube player control script it say mp4a.40.2%20. so I would guest mp4 is the audio format. codec is avc.1 this is written just after Microsoft-edge%2fissues%2f12007489%2f. is it some error because they use browser sniffing? it is also weird since it is only some video that have no sound, and not all of them. so something must make a difference from one video that have sound to one that have no sound.

    • found something on the issue I have sound on the video using only my pc speaker. using my head set I have no sound head set is Logitech g930. now why do some video sound do not work and some video sound work? could it have something to do with surround sound?

    • Microsoft Edge Team

      Changed Status to “Needs root cause”

      Changed Status from “Needs root cause”

      Changed Assigned To from “Venkat K.” to “Nishant N.”

      Changed Assigned To from “Nishant N.” to “Venkat K.”

      Changed Assigned To from “Venkat K.” to “Nishant N.”

      Changed Assigned To from “Nishant N.” to “Venkat K.”

      Changed Assigned To from “Venkat K.” to “Nishant N.”

      Changed Status to “Confirmed”

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