A little update with the following changes:

• Fixed CORS Error by allowing it in the Server. See in Example 1/sampleserver.js (View on GitHub)
• Updated Socket.io from v2.2.0 to v3.0.4
• Updated Extensions for GMS 1.4.9999 and GMS 2.3.1
• Updated Example 1 with v1.0.4

FYI, v1.0.3 and v1.0.4 is the same Version. Because of the YoYo Marketplace, things got messed up a bit..

The .yymps file is for GMS 2.3.x
The .gmez file is for GMS 1.4.x

Simply Drag&Drop the extension to your Project or just replace the Extension files with the ones from the Source folder of this Repository.