Support for Https with custom port

Author: pschatzmann

src/AudioTools/CoreAudio/AudioHttp/Url.h

@@ -38,7 +38,8 @@ class Url {
     return urlRootStr.c_str();
   }  // prefix w/o path -> https://host:port
   int port() { return portInt; }
-  bool isSecure() { return portInt == 443; }
+  // support https on custom ports
+  bool isSecure() { return portInt == 443 || protocolStr.startsWith("https"); }
 
   void setUrl(const char* url) {
     LOGD("setUrl %s", url);