"Something's gone wrong" dialog on page plugin

[strattonbrazil]

I setup a generalPages plugin using online examples. When I visit that page url I can see the request go to my server and return with a 200 status code as well as the correct response. However, the page just has a spinner that continues to spin and I eventually get an error dialog saying "Something's gone wrong". 

Looking at the console the only thing I see is "Error while parsing the 'sandbox' attribute: 'allow-storage-access-by-user-activation' is an invalid sandbox flag.", which may or may not be related. 

Can anyone tell if that error is relevant? If so, how do I resolve this? If not, why isn't my page plugin displaying? 

[DPKJ]

@strattonbrazil Welcome to the Atlassian Community.

As much as I know this error is not relevant, it was also in discussion on developer community where Atlassian Staff respond on this, here is a link to that discussion - https://community.developer.atlassian.com/t/allow-storage-access-by-user-activation-is-an-invalid-sandbox-flag/40159/4

Now, coming to other part of your question, "why isn't your page plugin displaying" is tough to guess with the information you have provided.

If you are trying something from examples that that Atlassian provide, double check and add some console message or break-points to check where code is failing.

[strattonbrazil]

Thanks, DPK. I'll ignore that specific error. 

> double check and add some console message or break-points to check where code is failing

That's kind of tough to do because the Atlassian code loading my HTML is minified. I don't have a clue where I would need to set break points.