feat: initial commit

internal/http/url/mutation.go

@@ -98,6 +98,12 @@ func WithPath(paths ...string) MutationFunc {
 	}
 }
 
+func WithFragment(fragment string) MutationFunc {
+	return func(u *url.URL) {
+		u.Fragment = fragment
+	}
+}
+
 func applyURLMutations(u *url.URL, funcs []MutationFunc) {
 	for _, fn := range funcs {
 		fn(u)