Setting an header of empty strings (~headers:[ "", "" ]) causes hang

[pckilgore]

dream~alpha4, specifically Dream.json.

The workaround is laughable (don't do that), so I didn't spend any time digging to see if it affects other helpers etc.

One possible clue is that if I dune exec /.app.exe locally on macos 12.4 (arm64) I don't see any problems, only when built + deployed on alpine:3.12 (x86).

If I figure out anything more I'll update, but this is super low priority just want this to be searchable.

Thanks for Dream!