Accessing draw io diagram within trello.com - invalid return_url at authorization

[PaulMTC]

Hi again

Don't know if this is just a temporary thing but I am getting the following error after clicking on the "authorize" button after attempting to "Edit" a draw io power-up diagram (saved as XML) from a card within trello.com online.

Invalid return_url. Wildcard ("*") allowed origins are no longer supported. Contact the developer. See https://community.developer.atlassian.com/t/52093

authorize URL was:

https://trello.com/1/authorize?response_type=token&key=<removed>&return_url=https%3A%2F%2Fwww.draw.io&callback_method=postMessage&scope=read%2Cwrite&expiration=never&name=draw.io

[Jireh · Accepted solution]

Hi Paul, please contact support for that Power-Up. To find the support email, go to the Power-Up's listing at `trello.com/power-ups` and look on the left side bar.

When you contact them, please tell them exactly what you showed us here (or just like them to this post!).

Thanks,

Jireh

[David Benson _draw_io_]

I think Atlassian need to investigate this. It worked fine until today and without us having made any config changes it suddenly pops up. It's not using a legacy app key.

[David Benson _draw_io_]

OK, I thought the dev post was from September 2016, not September 16th...

[PaulMTC]

Thanks , since this morning after clearing my browser cache it is now working again

[Alex Mauzon]

Invalid return_url. The return URL should match the application's allowed origins. Contact the developer.

We are the developers, and we sent return_url now and we're sure that it does match the allowed origins. 

Where we can find updated documentation if the one you mentioned is 2 years old?

Thanks!

[Jireh]

The documentation is still correct. If there's anything there that can be clarified, I'm happy to take feedback.

If you're having trouble matching your return_url with your allowedOrigins, please send us a ticket at https://go.trello.com/dev-support, ask for me and I can help you personally.

[David Benson _draw_io_]

Does it work now?

[PaulMTC]

Hi David, Sorry unfortunately still no dice today. It was working fine last week up until yesterday so no idea what has changed. I tried on two machines each using latest Edge (chromium version) and also tried on firefox - same issue.

before clicking on the Authorize button there are errors in Browser console - not sure if it is related.

WebSocket connection to 'wss://trello.com/1/Session/socket?clientVersion=build-9170' failed: Error in connection establishment: net::ERR_NAME_NOT_RESOLVED
connect @ socket.ts:218
api-gateway.trello.com/gateway/api/gasv3/api/v1/batch:1 

Failed to load resource: net::ERR_NAME_NOT_RESOLVED
api-gateway.trello.com/gateway/api/gasv3/api/v1/batch:1 

Failed to load resource: net::ERR_NAME_NOT_RESOLVED

the authorize link is 

https://trello.com/1/authorize?response_type=token&key=--removed--&return_url=https%3A%2F%2Fwww.draw.io&callback_method=postMessage&scope=read%2Cwrite&expiration=never&name=draw.io

there are no errors in the new window browser console within the authorize dialog.

I am using Microsoft exchange to sign in- not sure if this is relevant

I am also using trial of trello premium, not sure if relevant

[Jireh]

David, if you're still having trouble, please send us a ticket at our developer help portal: https://go.trello.com/dev-support

Ask for me and I'll help you out personally.