Black or Blank Loading Screen In-Game

If you encounter a black or blank screen instead of the loading screen when in-game, please see below for possible fixes.

1. Awesomium (Non-Chromium) Issues

In 2020, Garry's Mod changed from Awesomium to Chromium for web/HTML rendering. This was for a number of reasons, one of which we believe is linked to HTTPS/TLS problems in Awesomium. This issue can result in black or blank screens showing for webpages and is often the cause of black or blank screens on Mallard LoadScreen.

A workaround to this problem is to allow your loading screen to be accessed via HTTP instead of HTTPS.

1. Change from https:// to http:// in your sv_loadingurl entry.
2. Remove any enforcement/redirection of HTTPS on your web server for your loading screen directory.
3. This is important because even if the sv_loadingurl is properly changed in #1, the player will be redirected to HTTPS by the web server when they connect, causing the issue to occur still.