On the pre-migrated application, the application has older version of Ajax library that does not work well on Google Chrome. Therefore we replace the Ajax library. Because the new Ajax library has different API for scriptmanager, the following code files are replaced as well:
· ConfigureAddRecord.aspx
· ConfigureEditRecord.aspx
· ImportData.aspx
· ImportData.vb(cs)
· SelectFileToOmport.aspx
· SharePointMobile.master
· SharePointMaster.master
· SharePointBlank.master
During migration, the files above and AjaxControlToolkit.dll are replaced.
After migration, re-apply any customizations you may have made to the original files..