Apr 05 2018 02:54 PM
We make use of the Control Control for our SharePoint Add-Ins, and it looks like the Settings icon for the upper right menu is now missing. On further examination, the URL for the image https://<redacted >/apptest/_layouts/15/defaultcss.ashx?ctag=1522964650769&resource=spcommon returns a SharePoint error screen.
Any chance anyone else has had this issue with their Add-Ins? I suspect some of the underlying shifts in SharePoint Online's UIs may have broke the Chrome Control capability, and I'm hoping someone on the SharePoint team could investigate.
Apr 05 2018 02:55 PM
As a follow-on, I'd be happy to demonstrate the issue to any SharePoint engineer that needs to see it.
Apr 17 2018 12:11 AM
Recently from last few weeks, we have the same issue. Not able to see a setting icon in chrome menu header for SharePoint online add-in.
On defaultcss.ashx reference link, it giving sharepoint exception