Drop or pass through `reqwest` feature `http2`

[LeoniePhiline]

Problem Statement

http2 in reqwest / hyper is slow and buggy.

We would like to be able to disable reqwest's http2 feature entirely, but sentry makes this impossible if the reqwest transport should be used.

Solution Brainstorm

Either drop feature from the reqwest dependency, or pass through an optional flag. (E.g. sentry flag reqwest for transport reqwest without http2 – and sentry flag reqwest-http for reqwest?/http2.)

[linear-code]

RUST-185

[szokeasaurusrex]

Hi @LeoniePhiline, thank you for raising this concern.

I will have to investigate whether it is feasible for us to disable http2 in some way, including whether it is possible for us to do so without breaking any potential use cases. I will get back to you once I have a better understanding of the situation and what we can do to resolve it.