I am trying to open excel document in SharePoint 2016 using Office Online Server. I have installed and configured the Office Online Server on a separate server and configured the SharePoint to use the OOS.
I think the configuration is correct as I am able to view word documents in the browser. When I try to view excel files, it shows blank files and there are some errors in the browser console. The errors are
Redirects are not allowed for CORS preflight requests.
XMLHttpRequest: NEtwork Error 0x80070005, Access is denied.
There are no errors when I try to open a word document. Let me know in case any other information is needed.