Add-on iframe (auto)resize problems

Hi guys,

Would like to know if some of you have started to see app resizing issues lately? We didn’t really much changed our app and customers have been complaining lately that the app doesn’t resize.

After some investigation it appears like the ac-content CSS class automatic resizing have stopped working properly, and so did the AP.sizeToParent() method. The AP.resize() seems to be working fine though.

Do you know what might be going on here?

Thank you!