Hi.

I have a site that I've been working on for a while, and has been working fine on both localhost and on the Azure site where it lives publicly.

Recently however, I've been unable to login to Umbraco when hosting locally. I can see in the network panel the POST to PostLogin, and the response looks correct except for some funny characters at the beginning: )]}'

Here is the entire response copied from the network tab:

)]}',
{"email":"[email protected]","locale":"en-US","emailHash":"f49282915b2108dd21edb1bf481a8a2e4ceae3b5","userGroups":["admin","sensitiveData"],"remainingAuthSeconds":0.0,"startContentIds":[-1],"startMediaIds":[-1],"avatars":[],"allowedSections":["content","forms","media","member","packages","settings","translation","users"],"id":-1,"name":"Alan"}

Then, the call to IsAuthenticated returns a similar bad response:

)]}',
false

I have published this site to live, and it still is working fine, but can't debug into any Umbraco events because of it.

Any ideas?