Infinite loop

[PLAN8VR]

Hi,

When trying to enter setup from the web page on the manager, I get an error about an infinite loop, and cannot login? This doesn't happen every time, but more often than not - any ideas what I'm potentially doing wrong?

Windows 10

Thanks

[ArrowThief]

I don't know that this is related, but I've noticed that since around the beginning of the year my flamenco manager web interface is caught in an infinite loop. This has not impacted functionality, apart from no longer being able to access anything in the interface. It still pushes tasks to workers and has moved though render projects. I assumed this was an issue with my manager, so I set about scraping it and starting over, however after I connect to cloud.blender.org to setup the manager, the setup page does the same thing.
So I believe the issue is coming from cloud.blender.org.
I attached gifs to better illustrate the issue.

[sybrenstuvel]

This happens when the cookies for the security check don't work well. I've seen issues like this with Google Chrome when a hostname without a dot in it (so just localhost, for example) is used. Try using a name like flamenco.local instead of an IP address, that might help.

Alternatively, if your Manager is not facing a public network interface, you can disable the JWT security altogether by editing flamenco-manager.yaml and setting:

user_authentication:
    disableSecurity: false

[ArrowThief]

Interesting, since it just started happening randomly I assumed it was something that had changed on the server side. I didn't consider it may have been a chrome update or something.I went ahead and setup flemenco.local to test it, but It still happens when I go to flamenco.local:8080. Edge works though, so I can just deal with it that way. thanks for the help.

[garyritchie]

Firefox also works better than Chrome in this case. Took about an hour to figure that out.

[dingdini]

I have to add that I'm setting this up as well, and it is utterly failing. I'm running the manger on Ubuntu 18.04, and trying to access the manager through Safari on MacOS Catalina.

[sybrenstuvel]

It has something to do with how the browser handles XHR requests from the Flamenco Manager interface to cloud.blender.org. Some browsers include the Cloud session cookie, and others don't. Firefox seems to work, other browsers have some issues. If anyone knows how to fix this properly, please speak up!

[RalekArts]

I'm still getting this issue with Firefox, Chrome, and Edge. Any workarounds or fixes on the horizon yet?

[sybrenstuvel]

Sprite Fright is in production, which means the Blender Animation Studio will be actively using Flamenco again soon. I'll probably have some time to look into this in the coming months. As I said above, it's part of how the JWT-based security is handled, so when you turn that off your Flamenco Manager is usable by anyone who can reach it, but won't infinitely loop.

[garyritchie]

Alternatively, if your Manager is not facing a public network interface, you can disable the JWT security altogether by editing flamenco-manager.yaml and setting:
user_authentication:
disableSecurity: false

Rather it should be true...

user_authentication:
    disableSecurity: true

With that setting it seems to work better in Chromium. Manager is behind a firewall in a trusted environment.