I have had 2.7 for awhile. I just upgraded to 2.9 to get the “dynamic” feature for tabs and a lot has changed. My tabs in the azure theme are now showing with black font and only show a white font when selected. Also, the page only loads in IE. Chrome is not loading anything other than a black screen. The javascript console in chrome is showing “DevTools failed to load SourceMap: Could not load content for https://gldas90585:8084/api/internal/javascript/index.f0780edeb6f7f687d8d8.bundle.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE.” It seems like it works in Chrome from the web server when I do localhost:8084, but not when accessing the site remotely (only works in IE). I did not have this issue with 2.7. Any ideas?
try the following
1- remove all ud contents and replace it with the ones from 2.9 dont just upgrade you need a full delete.
2- in powershell point to the path of the ud and unblock-file like this
gci -path d:\ud\2.9.0 -recurse | unblock-file
above will make sure the new files are unblocked and active.