I have noticed that my WebAppBuilder application (ArcGIS Web Application ) gets the following error when being opened only in Internet Explorer:
Create widget error: themes/FoldarbleTheme/widgets/HeaderController/Widget
Where do I begin to sleuth out this error?
See if this thread helps. There was an Windows Update that made the use of double backshashes in a path no longer work in IE.
My computer is up to date. I tried downloading and manually installing, and two said they were not applicable to my machine, and the third said I already had that update patched.