Issue with Red Error Pop-up in Microsoft Teams Tab Application
Hello, I developed a Microsoft Teams tab application where I add a page in a static tab (using the contentURL). While the page loads successfully, a red error pop-up consistently appears after 30-45 seconds. This happens with both static and configurable tabs. In configurable tabs, even after saving and loading the page, the pop-up still appears. It has no error message and can be dismissed by clicking the 'X' but reappears within 30-45 seconds after switching between apps or chats. Please see the attached screenshot for reference. I have tested this across local, development, and production environments, and it persists with all non-local URLs (i.e., pages outside my tab). The behavior is the same on both desktop and browser versions of Teams. Initially, I suspected Razor code might be the issue, but the problem persists even with a hardcoded URL. The app package was successfully validated using the Microsoft Teams App Validator, but the error pop-up remains. Could you please help me resolve this issue as soon as possible? Thank you.
