teams.cloud.microsoft - see bug description

[christofdamian]

URL: https://teams.cloud.microsoft/

Browser / Version: Firefox 148.0
Operating System: Linux
Tested Another Browser: No

Problem type: Something else
Description: Pasting and submitting in the meeting chat is not working
Steps to Reproduce:
Pasting doesn't work whatsoever, submitting chats doesn't either.

If I disable dom.security.trusted_types.enabled it works again.

I found these relevant logs:
Unhandled error/rejection {"isTrusted":true} v2:16:2806 Content-Security-Policy: The page’s settings blocked assigning to an injection sink because it violates the following directive: “require-trusted-types-for ’script’“ 20003-81dc4832a641be8a.js:1:15783 Content-Security-Policy: The page’s settings blocked assigning to an injection sink because it violates the following directive: “require-trusted-types-for ’script’“ 20003-81dc4832a641be8a.js:1:15881 XHRGET https://api.flightproxy.teams.microsoft.com/api/v2/ep/broker-frce-05-prod-aks.broker.skype.com/api/v1/subscribe/05629d24-eaee-42e0-a1af-c9b6ed2f9a17/0?i=10-128-47-138 XHRGET https://api.flightproxy.teams.microsoft.com/api/v2/ep/broker-frce-05-prod-aks.broker.skype.com/api/v1/subscribe/05629d24-eaee-42e0-a1af-c9b6ed2f9a17/0?i=10-128-47-138 XHROPTIONS https://api.flightproxy.teams.microsoft.com/api/v2/ep/broker-frce-05-prod-aks.broker.skype.com/api/v1/subscribe/05629d24-eaee-42e0-a1af-c9b6ed2f9a17/0?i=10-128-47-138 [HTTP/2 204 64ms] XHRPOST https://eu-teams.events.data.microsoft.com/OneCollector/1.0/?cors=true&content-type=application/x-json-stream&content-encoding=gzip [HTTP/2 200 379ms] XHROPTIONS https://eu-teams.events.data.microsoft.com/OneCollector/1.0/?cors=true&content-type=application/x-json-stream&content-encoding=gzip [HTTP/2 200 155ms]

Browser Configuration

• blockList: basic
• defaultUserAgent: Mozilla/5.0 (X11; Linux x86_64; rv:148.0) Gecko/20100101 Firefox/148.0
• gfx.webrender.software: false
• hasTouchScreen: false
• layers.acceleration.force-enabled: false
• frameworks: {'fastclick': False, 'marfeel': False, 'mobify': False}
• mixed active content blocked: false
• mixed passive content blocked: false
• tracking content blocked: false
• btp has purged site: false

View console log messages

From webcompat.com with ❤️

[softvision-raul-bucata]

What I would do usually to test this kind of issue, is:

1. Type about:profiles in the url bar.
2. Choose Create a new profile.
3. Call it deleteme or anything you please.
4. Then start it. (this way you will be sure that nothing is interfering, no ghost caching etc.)- make sure account sync is not performed, as the extensions will be imported in the new profile.
5. Test.

Note: You can return to your old profile at any given time by accessing "about:profiles" in the address bar

[qa_09/2026]