Microsoft Outlook O365 "Add-In Error" With Automatic Restart

Question

Recently I have been seeing my Microsoft O365 add-in load with this error:

Error Image ADD-IN ERROR Sorry, we had to restart because this add-in wasn't responding.

The console/dev tools shows no error logged at all and then the add-in procedes to restart and run just fine. Is there any reason why add-ins fail to load on occasion without specific errors?

Eugene Astafiev · Accepted Answer · 2020-06-02 20:57:14Z

1

By default, web add-ins are restarted if any action takes more than 330 ms (5s). You can use a WebWorker to launch long-running tasks. For example, see Long operations crash Office addin (JS).

answered Jun 2, 2020 at 20:57

Eugene Astafiev

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2 Comments

Asmi Over a year ago

Hi @Eugene , I am facing similar issue with our office word web addin. After getting first slice of data , it gives the error "Sorry, We had to restart because this add-in was not responding". We are using the same code as mentioned in [link] (learn.microsoft.com/en-us/office/dev/add-ins/word/…) . No matter the size of slice, it gives error after getting 1st slice of data. Please suggest!

Eugene Astafiev Over a year ago

I'd suggest posting a separate question in a new thread so readers could easily recognize questions and answers.

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