502 Bad Gateway is returned (after some time) when Micropub server responds with an error

[jamietanna]

My Micropub server doesn't yet support Gfycat as a source for photos, but I wanted to give it a go to see what the response was.

Interestingly, I found Kapowski returned a 502, after some time - I wonder if we're not fully handling the error?

[martymcguire]

Thanks for the report @jamietanna

I can confirm that if a micropub create request comes back with an error that nothing is displayed to the user: https://github.com/martymcguire/kapowski/blob/glitch/server.js#L194

it gets console.log'd but that's ephemeral. leaving this as a TODO!