correct headers for tab-delimited output

[jvolkening]

Hi,

The OpenAPI spec indicates that tab-delimited data can be returned for some endpoints by using the Allow: x-tabular header. The demo on the API docs site, however, uses Allow: text/tab-separated-values and I can confirm with curl that the latter works and the former does not. It seems the spec document should be updated to reflect this. I could do a quick replace and submit a PR, but if the spec is auto-generated this wouldn't do much good.

[syntheticgio]

Thanks again @jvolkening ; this resulted from a migration we did a while ago and the openAPI spec needs to be updated on our end. I've added this to the internal ticket with the previous issue you found. It sounds like you're also not blocked by this, so most likely this will get tackled next sprint. If I'm wrong let me know and I can see if I can get it prioritized.

I'll leave the issue open until the fix is merged.