Fix `on_headers` callbacks being called early#264

Merged

felipedmesquita merged 3 commits into

typhoeus:masterfrom

felipedmesquita:fix-on_headers

Aug 27, 2025

Commits on Aug 27, 2025

mutable reference prevented this test from breaking when it should have
Felipe Mesquita
committed
can't run user callbacks here, libcurl calls this once per header line
Felipe Mesquita
committed
keep support for :abort from on_headers by aborting on_body
Felipe Mesquita
committed