I’m following this guide, but I’m unable to save settings for the saml2 addon for my application. When I click save, I get the following error message:
Error! Unexpected failure trying to update addon, try again later.
If I close and re-open the settings pane, my values are not saved.
Found the issue. I had copy/pasted the JSON string template from the guide (linked in the OP), and there was some issue with the " characters. Once I replaced them all I was able to save the settings.