Propagate Host header from incoming request to the function.

dmrub · alexellis · commit 9e889be6db02 · 2018-08-13T17:32:23.000+01:00
Host HTTP header was not propagated to the function because it is not
a part of http.Request.Header map.

Signed-off-by: Dmitri Rubinstein &lt;dmitri.rubinstein@googlemail.com&gt;
diff --git a/executor/http_runner.go b/executor/http_runner.go
@@ -107,6 +107,7 @@ func (f *HTTPFunctionRunner) Run(req FunctionRequest, contentLength int64, r *ht
 		request.Header.Set(h, r.Header.Get(h))
 	}
 
+	request.Host = r.Host
 	copyHeaders(request.Header, &r.Header)
 
 	ctx, cancel := context.WithTimeout(context.Background(), f.ExecTimeout)

Original file line number	Diff line number	Diff line change
`@@ -107,6 +107,7 @@ func (f HTTPFunctionRunner) Run(req FunctionRequest, contentLength int64, r ht`
`107`	`107`	`request.Header.Set(h, r.Header.Get(h))`
`108`	`108`	`}`
`109`	`109`
	`110`	`+ request.Host = r.Host`
`110`	`111`	`copyHeaders(request.Header, &r.Header)`
`111`	`112`
`112`	`113`	`ctx, cancel := context.WithTimeout(context.Background(), f.ExecTimeout)`