Docs button doesn't work in 0.42 using Firefox

[graphql]

Docs button doesn't work in 0.42 using Firefox

[leebyron]

Thanks for the report

[leebyron]

Hmm, I'm having trouble reproducing this error in FF42. I can open the docs just fine and don't see any error.

The error is blaming to within CodeMirror itself, that line seems to be https://github.com/codemirror/CodeMirror/blob/1fae53703cf4099d4f4855ef18dd14d60514c82f/lib/codemirror.js#L8531 which isn't used within Docs.

My sense is that touching Docs is triggering a different issue elsewhere, but it's hard for me to investigate without a reproducible case.

@ndarilek is there any way you could host an instances that reliably fails so I can investigate further?

[ndarilek]

Huh, so to clarify, you're using the repository/sample I linked to in my
initial comment?

I ask because according to this
issue,
@jonsharratt seems to be experiencing the same issue. So if you are
using that example and aren't experiencing it then I'll need to think a
bit more about what might be causing this.

Thanks.

[leebyron]

I was not using that package, I was using the example hosted in this repository.

Let me see if I can get a repro from that package.

[jonsharratt]

Hi @leebyron I tried http://graphql-swapi.parseapp.com/ in Firefox and docs did not display. It takes 3-4 seconds for that error to appear for me.

Works perfectly in Chrome.

[jonsharratt]

Uploaded a quick video showing what I see in my Firefox on that URL. If that helps? - Double checked and my version of Firefox is 42.

https://vid.me/N1Dz

[leebyron]

Thanks, I've got a repro. This looks like it's newly introduced in FF42 and I think a result of introducing a native version of fetch. There is also then not sufficient error handling in GraphiQL to properly display the issue. I'll fix both!