fix: canonicalize strippedValue in processHashForInit

dunglas · claude · dunglas · commit 6ef50cb13920 · 2026-04-20T13:12:00.000+02:00
processHashForInit computed strippedValue (the hash with a leading '#'
removed) but then passed the original value to canonicalizeHash, which
matches neither the WHATWG spec nor the behavior of the analogous
search processor that uses its strippedValue.

Co-Authored-By: Claude Opus 4.7 (1M context) &lt;noreply@anthropic.com&gt;
diff --git a/urlpattern.go b/urlpattern.go
@@ -681,7 +681,7 @@ func processHashForInit(value, hType string) (string, error) {
 		return strippedValue, nil
 	}
 
-	return canonicalizeHash(value)
+	return canonicalizeHash(strippedValue)
 }
 
 // https://urlpattern.spec.whatwg.org/#is-an-absolute-pathname

Original file line number	Diff line number	Diff line change
`@@ -681,7 +681,7 @@ func processHashForInit(value, hType string) (string, error) {`
`681`	`681`	`return strippedValue, nil`
`682`	`682`	`}`
`683`	`683`
`684`		`- return canonicalizeHash(value)`
	`684`	`+ return canonicalizeHash(strippedValue)`
`685`	`685`	`}`
`686`	`686`
`687`	`687`	`// https://urlpattern.spec.whatwg.org/#is-an-absolute-pathname`