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-rw-r--r--src/net/http/csrf.go4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/net/http/csrf.go b/src/net/http/csrf.go
index d088b9b615..0b71b40389 100644
--- a/src/net/http/csrf.go
+++ b/src/net/http/csrf.go
@@ -90,6 +90,10 @@ var sentinelHandler Handler = &noopHandler{}
// would redirect to a pattern (e.g. after cleaning the path or adding a
// trailing slash) are not.
//
+// AddInsecureBypassPattern panics if the pattern conflicts with one already
+// registered, or if the pattern is syntactically invalid (for example, an
+// improperly formed wildcard).
+//
// AddInsecureBypassPattern can be called concurrently with other methods or
// request handling, and applies to future requests.
func (c *CrossOriginProtection) AddInsecureBypassPattern(pattern string) {