From e6a8fdb84cb3ac9290bf9e23086c9f171caa95a8 Mon Sep 17 00:00:00 2001
From: Olivier Michel <Olivier.Michel@cyberbotics.com>
Date: Thu, 7 May 2020 17:58:37 +0200
Subject: [PATCH] added comment

---
 resources/web/wwi/server.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/resources/web/wwi/server.js b/resources/web/wwi/server.js
index 53f2261dcc0..0b65cb42d33 100644
--- a/resources/web/wwi/server.js
+++ b/resources/web/wwi/server.js
@@ -11,6 +11,7 @@ class Server { // eslint-disable-line no-unused-vars
     // "wss://cyberbotics1.epfl.ch/1999/session
     //  ?url=webots://github.com/cyberbotics/webots/branch/master/projects/languages/python"
     const n = this.url.indexOf('/session?url=', 6);
+    // 6 is for skipping the "ws(s)://domain" part of the URL which smallest form is 6 characters long: "ws://a"
     if (n === -1) {
       const m = url.lastIndexOf('/');
       this.project = url.substring(this.url.indexOf('/', 6) + 1, m - 7); // e.g., "simple"