Symptoms

I have created a custom UI view and when I open it I see in browser console that the application display area grows uncontrollably and resizeApp function is called in an infinite loop.

Cause

aps/PageContainer id in your view clashes with id of some other element in the DOM, most likely a system element

Resolution

Change the ID of aps/PageContainer element to a different one, e.g. pcontainer:

 <div data-dojo-type="aps/PageContainer" id="pcontainer">
 ...
 </div>

List of DOM element IDs that are used by POA and should not be used in custom UI can be found here.

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