Start Logging Mobile feature chrome://inspect and edge://inspect

[Samantha Taylor]

Hi All,

I've been trying to debug an issue that I can only reproduce using iPhone with the Edge browser. Since Edge doesn't support iPhone remote debugging ( Remotely debug Android devices - Microsoft Edge Development | Microsoft Learn), I've been using edge://inspect  directly on my phone and using the Start Logging feature. The edge://inspect inherits the code from the upstream Chromium project (chrome://inspect for Chrome).

This is great for seeing console.log/debug/error() logs from the tabs on my phone for that browser, but it does not show non-console.log errors like we can see in the console window of a browser.

Is there any way to enable this? Or do a feature request to allow more than just the JavaScript console.log/debug/error() to appear in the logs when using the Start logging feature on mobile?

Please let me know if there is a better place to post this question.

Kind regards,
Sam Taylor

[K. Moon]

When you say you can only reproduce this using Edge on iPhone, does this mean you can't reproduce it on Chrome on iPhone?

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[K. Moon]

Glad to hear it! I guess Edge folks would appreciate a bug report if the debugging doesn't work with Edge specifically; not sure how you do that, though.

On Wed, Feb 8, 2023 at 11:32 AM Samantha Taylor <sc.tay...@gmail.com> wrote:

Yes, the current issue I’m trying to debug is not reproducible on Safari. I overlooked trying on Chrome originally since we couldn’t access the site outside of our corporate network without being logged in. After using ngrok with localhost right now I was able to validate it is also an issue on Chrome. Which makes sense since they are both built on chromium.

Now that I’ve reproduced it on Chrome I should be able to use the browser remote debugging! 

Thank you for your help!

Kind regards,

Sam Taylor

[K. Moon]

Sounds like this might be crbug.com/584905, then. Unfortunately, this seems like this might be a limitation of WKWebView on iOS.

On Wed, Feb 8, 2023 at 11:49 AM Samantha Taylor <sc.tay...@gmail.com> wrote:

The debugging with Edge is the same as Chrome where only the output from console.log/error/debug() is outputted in the Start Logging mobile feature for chrome://inspect. 

Errors, Exceptions, or Lighthouse suggestions do not show up in the Start Logging log. I just tried remote debugging for Chrome and iOS but it is also not supported so my originally issue is still a problem. (

https://blog.chromium.org/2019/03/debugging-websites-in-chrome-for-ios.html)

Is there a way to get all console output like what we would see on a desktop browser when using the Start Logging feature on Mobile? 

Sorry for the false positive in the last message! 

[K. Moon]

Best of luck debugging your issue!

On Wed, Feb 8, 2023 at 11:58 AM Samantha Taylor <sc.tay...@gmail.com> wrote:

Bummer, that is a shame! Thank you for digging that up for me. I appreciate your help and prompt responses. 

Thank you for your time! 

Kind regards,

Sam Taylor

[Samantha Taylor]

The debugging with Edge is the same as Chrome where only the output from console.log/error/debug() is outputted in the Start Logging mobile feature for chrome://inspect. 

Errors, Exceptions, or Lighthouse suggestions do not show up in the Start Logging log. I just tried remote debugging for Chrome and iOS but it is also not supported so my originally issue is still a problem. (

https://blog.chromium.org/2019/03/debugging-websites-in-chrome-for-ios.html)

Is there a way to get all console output like what we would see on a desktop browser when using the Start Logging feature on Mobile? 

Sorry for the false positive in the last message! 

[Samantha Taylor]

Yes, the current issue I’m trying to debug is not reproducible on Safari. I overlooked trying on Chrome originally since we couldn’t access the site outside of our corporate network without being logged in. After using ngrok with localhost right now I was able to validate it is also an issue on Chrome. Which makes sense since they are both built on chromium.

Now that I’ve reproduced it on Chrome I should be able to use the browser remote debugging! 

Thank you for your help!

Kind regards,

Sam Taylor

On Wed, Feb 8, 2023 at 12:02 PM K. Moon <km...@chromium.org> wrote:

[Samantha Taylor]

Bummer, that is a shame! Thank you for digging that up for me. I appreciate your help and prompt responses. 

Thank you for your time! 

Kind regards,

Sam Taylor