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Merge pull request #136 from thaJeztah/18.09_backport_fix_panic

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[18.09 engine] registry: use len(via)!=0 instead of via!=nil
Upstream-commit: 01c732d40a3f67bed801f8fd4b62f3dbc035b788
Component: engine
This commit is contained in:
Andrew Hsu
2018-12-13 10:43:38 +00:00
committed by GitHub
parent c8cccde1d5 79cbff3cd3
commit ed161fafa9
1 changed files with 1 additions and 1 deletions
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2
components/engine/registry/registry.go
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@ -145,7 +145,7 @@ func trustedLocation(req *http.Request) bool {
// addRequiredHeadersToRedirectedRequests adds the necessary redirection headers
// for redirected requests
func addRequiredHeadersToRedirectedRequests(req *http.Request, via []*http.Request) error {
if via != nil && via[0] != nil {
if len(via) != 0 && via[0] != nil {
if trustedLocation(req) && trustedLocation(via[0]) {
req.Header = via[0].Header
return nil