I'm having a peculiar issue where the preview button is not functioning properly on a web site (v.4.10.1). What's strange is that I have a different Umbraco instance installed on the same server and for that one the preview is functioning fine. I even tried taking the versioning up to v4.11.1 and the preview still does not work for the site in question.
Here's a list of settings I've compared between the working site and non-working site:
IIS Site Settings & App Pool Settings
web.config files
Windows/IIS permissions
Umbraco Version
DB Version
The only differences between the two sites I can deduce are the site where preview is failing had the uComponents, CMSImport and Contour packages installed. I've removed uComponents and CMSImporter for the time being and the issue persists.
Preview Button Not Functioning
I'm having a peculiar issue where the preview button is not functioning properly on a web site (v.4.10.1). What's strange is that I have a different Umbraco instance installed on the same server and for that one the preview is functioning fine. I even tried taking the versioning up to v4.11.1 and the preview still does not work for the site in question.
Here's a list of settings I've compared between the working site and non-working site:
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