On a Sitecore 9.1 Initial Release site with JSS (Angular JS), we are noticing a large number of these errors in the Sitecore logs:
15888 15:09:55 ERROR ERROR [Error]
This is the entire error message, and it's not obvious to see what could be causing it. I've had a good look through configuration and decompiling binaries to try and see what might be raising this, but without luck.
Has anyone come across this and knows what this is related to?