most simple relay pool.

utils.ts

@@ -3,6 +3,20 @@ import {Event} from './event'
 export const utf8Decoder = new TextDecoder('utf-8')
 export const utf8Encoder = new TextEncoder()
 
+export function normalizeURL(url: string): string {
+  let p = new URL(url)
+  p.pathname = p.pathname.replace(/\/+/g, '/')
+  if (p.pathname.endsWith('/')) p.pathname = p.pathname.slice(0, -1)
+  if (
+    (p.port === '80' && p.protocol === 'ws:') ||
+    (p.port === '443' && p.protocol === 'wss:')
+  )
+    p.port = ''
+  p.searchParams.sort()
+  p.hash = ''
+  return p.toString()
+}
+
 //
 // fast insert-into-sorted-array functions adapted from https://github.com/terrymorse58/fast-sorted-array
 //