MS Teams Meetings App No Longer Launching on Safari

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MS Teams Meetings App No Longer Launching on Safari

Over the past week or so I have had issues with the MS Teams app for Mac not launching on Safari. Clicking the link opens Safari to the usual MS page which gives three options (1. download the desktop app 2. use browser or 3. launch app if you already have it), and my installed app used to open automatically from there. Now it doesn't, and clicking on the button for option 3 does nothing, whether I already have the app open or not. Given that it was working perfectly before, I guess it must be related to a glitch between MS and Safari in a recent Update?

In case it is helpful, a tech-savvy person posted on a thread on this topic in the MS Community thread, and shared that the relevant error message (viewable in Developer JS menu) is as follows: "Ignoring request to load this main resource because it has a custom protocol and comes from a sandboxed iframe"

Is anyone else having this issue? And, if so, have you found a fix?

I have already tried the following, based on suggestions found in the MS community forum...

Delete MS Teams Identity Cache
Uninstall and reinstall the Teams app

... but neither has resolved the issue.

I have found a temporary work-around because if I copy the invitation link into Chrome instead, it works fine. But Safari is set as my default browser, and I'd prefer to keep it that way if possible.

All suggestions sincerely appreciated. As a not-at-all-tech-savvy person, please explain any recommendations, ideally in words of one syllable!!

Thanks in advance :-)

MacBook Pro 15″, macOS 11.6

Posted on Apr 22, 2022 3:28 AM

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Answer 1

Apr 23, 2022 8:14 AM in response to CruisinKate

Hello CruisinKate,

Just to confirm, does this only happen when trying to access Microsoft Teams from Safari, or do you experience issues accessing other content or webpages in Safari?

If Safari isn't opening a webpage as expected, please check out the information here: If Safari on Mac doesn't open a webpage or isn’t working as expected

If you're unable to open that app on your Mac, please check out the following page for some steps that may help: If you can’t open an app on Mac

• If you aren’t an administrator of your Mac, the administrator may be preventing you from using the app. Contact the administrator of your Mac.

•You may be trying to open an app that is not registered with Apple by an identified developer. If you want, you can open an app from an unidentified developer.

• If you recently installed a new version of macOS, some apps may need to be updated or reinstalled. See Install and uninstall apps from the internet or disc.

If you continue to experience an issue, and it only happens with Microsoft Teams, we'd suggest reaching out to the developer. This link explains how to contact a developer: How to contact an app developer

Thanks!

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Answer 2

CruisinKate Author

Level 1

4 points

Apr 24, 2022 4:19 AM in response to Brittany1416

Hi Brittany,

Thanks for taking the time to respond.

I am not experiencing any other issues, either with Safari opening web pages or with other apps not opening properly on my Mac.

As mentioned above, uninstalling and reinstalling the Teams app has not resolved the issue. And the fact that I can open fine using Chrome as the browser but not with Safari suggests the problem is at the Apple end of the equation not Microsoft (though I have posted in their Help Forum too, to cover both bases).

If you have any other thoughts about how to get Apple to look into this, using the error message info provided above, that'd be great. Otherwise, thanks again for trying to help.

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Answer 3

Apr 25, 2022 11:28 AM in response to CruisinKate

I am having the exact same issue. I have browsed around and have not been able to find an answer. I also use the Chrome workaround, but would like to continue to use Safari as my default browser.

Any help is much appreciated.

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Answer 4

CruisinKate Author

Level 1

4 points

Apr 26, 2022 8:55 AM in response to danGavilan

Thanks for also commenting, danGavilan. Hopefully someone will come back to us soon. It's not like this is an obscure app, so hopefully this will be taken care of soon and someone will come back to us..!

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MS Teams Meetings App No Longer Launching on Safari

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