'x-atlassian-mau-ignore' header + mgas.prod.public domain

Hello All,

I am working on a JIRA cloud plugin. I have the plugin installed on my Atlassian instance. On a regular basis I am seeing a CORS error in the console when the plugin is loaded and/or browsing the plugin :

Access to fetch at ‘https://mgas.prod.public.atl-paas.net/v1/event’ from origin ‘https://InstanceName.atlassian.net’ has been blocked by CORS policy: Request header field x-atlassian-mau-ignore is not allowed by Access-Control-Allow-Headers in preflight response.

Anyone has any idea what ‘x-atlassian-mau-ignore’ header is ? What is mgas.prod.public domain?
Any help is appreciated !!

Thanks,
Sheff

1 Like

Thanks for the heads up @sfg. I don’t have details, however, it’s likely a type of analytics event. I’ll ping the appropriate team internally to see if they can provide details and/or address the issue directly.

1 Like

@nmansilla FYI we’re experiencing the same thing in multiple environments and I think @charlie was reporting a similar issue.

Yes, I routinely see those errors whenever I leave a Jira page open for a while. It’s not immediate but starts occurring after some period of time.

Console:

Network:

I was able to get a hold of the right team and they’re evaluating.

3 Likes

Same problem here. It would be nice to get rid of it.

Are there any updates or work arounds for this yet?
I started seeing this yesterday 11/4/19:
the ‘…atlassian.net’ has been blocked by CORS policy: Request header field x-atlassian-mau-ignore is not allowed by Access-Control-Allow-Headers in preflight response.
ENT-3625:1 Uncaught (in promise) TypeError: Failed to fetch".

I am unable to recover. No access to test steps or executed results.
Thank you, Karen Sineri, P21

@nmansilla
See my post from this morning, please. I’m looking for a workaround. Thanks, ks

@nmansilla
Can you please advise if we have any update on this?
I’m receiving same error on IE console and cannot login to Jira using IE.