fix normalize and add a test.

normalize.go

@@ -20,9 +20,7 @@ func NormalizeURL(u string) string {
 		p.Scheme = "wss"
 	}
 
-	if strings.HasSuffix(p.RawPath, "/") {
+	p.Path = strings.TrimRight(p.Path, "/")
-		p.RawPath = p.RawPath[0 : len(p.RawPath)-1]
-	}
 
 	return p.String()
 }

normalize_test.go

@@ -0,0 +1,30 @@
+package nostr
+
+import "fmt"
+
+func ExampleNormalizeURL() {
+	fmt.Println(NormalizeURL("wss://x.com/y"))
+	fmt.Println(NormalizeURL("wss://x.com/y/"))
+	fmt.Println(NormalizeURL("http://x.com/y"))
+	fmt.Println(NormalizeURL(NormalizeURL("http://x.com/y")))
+	fmt.Println(NormalizeURL("wss://x.com"))
+	fmt.Println(NormalizeURL("wss://x.com/"))
+	fmt.Println(NormalizeURL(NormalizeURL(NormalizeURL("wss://x.com/"))))
+	fmt.Println(NormalizeURL("x.com"))
+	fmt.Println(NormalizeURL("x.com/"))
+	fmt.Println(NormalizeURL("x.com////"))
+	fmt.Println(NormalizeURL("x.com/?x=23"))
+
+	// Output:
+	// wss://x.com/y
+	// wss://x.com/y
+	// ws://x.com/y
+	// ws://x.com/y
+	// wss://x.com
+	// wss://x.com
+	// wss://x.com
+	// wss://x.com
+	// wss://x.com
+	// wss://x.com
+	// wss://x.com?x=23
+}