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chrisnok's avatar
chrisnok
Copper Contributor
Aug 24, 2026

Teams iOS custom tab not appearing in Safari Web Inspector

Hi,

I’m trying to debug an intermittent white screen in a custom Teams tab on iPhone, but I am unable to get "DevTools" to work as described here 

https://learn.microsoft.com/en-us/microsoftteams/platform/tabs/how-to/developer-tools

My setup:

  • Teams iOS 8.14.1
  • iOS 26.6.1 and iOS 27.0 Beta 6
  • macOS 26.6.2
  • Developer Preview enabled
  • My user has been in Microsoft 365 Targeted Release for >24 hours
  • Safari Web Inspector enabled on iPhone
  • Safari pages on the same iPhone are inspectable from my Mac

However, with the custom tab open in Teams, Safari → Develop → iPhone shows “No Inspectable Applications.”

I’ve already signed out/in, force-quit Teams, cleared app data, re-enabled Developer Preview and tested on two different iPhones/Macs.

Is Safari Web Inspector for Teams iOS tabs currently supported, and is there any additional setting required to make the Teams WebView inspectable?

developer
microsoft teams

2 Replies

  • chrisnok's avatar
    chrisnok
    Copper Contributor
    Aug 26, 2026

    Now it suddenly worked on my iPhone as well - with no changes made. I guess I just had to wait a weeks time for every setting to propagate...?

  • chrisnok's avatar
    chrisnok
    Copper Contributor
    Aug 25, 2026

    Update: A colleague managed to get this to work on iOS 26.6.1 and I have been able to use Web Inspector with other apps - so apparently the problem is only on my installation of the app. Maybe the "intermittent white screen" problem I am trying to debug and this Web Inspector problem is connected, since only I have been experiencing that issue as well - and only for that custom app.