net/http: document Redirect behavior for non-ASCII characters
For #4385
For #72745
Change-Id: Ibd54fc03467eb948001299001bb2e2529512a7c0
Reviewed-on: https://go-review.googlesource.com/c/go/+/656135
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
diff --git a/src/net/http/server.go b/src/net/http/server.go
index 2daf9d3..be25e9a 100644
--- a/src/net/http/server.go
+++ b/src/net/http/server.go
@@ -2362,6 +2362,8 @@
// Redirect replies to the request with a redirect to url,
// which may be a path relative to the request path.
+// Any non-ASCII characters in url will be percent-encoded,
+// but existing percent encodings will not be changed.
//
// The provided code should be in the 3xx range and is usually
// [StatusMovedPermanently], [StatusFound] or [StatusSeeOther].
