[TT-5070] Duplicate WriteHeader calls cause malformed responses from golang plugins#7985

shults wants to merge 5 commits intomasterTykTechnologies/tyk:masterfrom

TT-5070-duplicate-write-header-calls-cause-malformed-responses-from-golang-pluginsTykTechnologies/tyk:TT-5070-duplicate-write-header-calls-cause-malformed-responses-from-golang-pluginsCopy head branch name to clipboard