Custom reports are now failing due to CORS policy error

  • 19 April 2019
  • 2 replies

Userlevel 2

Our custom reports were working fine up to about 25 minutes ago, at which point all of the MP.api calls suddenly started failing due to the following error:

"...has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource."

(This is on a custom report page that is hosted by mixpanel and which is trying to access using MP.api)

Are other people seeing the same issue? I'm assuming that something got messed up on the mixpanel backend server, but I want to make sure.

2 replies

Userlevel 2

The reports have just as suddenly started working again, so hopefully it was something that got fixed on the backend.

Userlevel 5
Badge +4

Hi @vyrin, thanks for brining this up and giving an update on it! I have checked into it and it looks like we did have some slight downtime on a query around 4:30 pm Pacific time, but this has been fixed since! If you ever want to check our status page, please feel free to do so here