Reproduction steps:
1. Open the “IN-85688.zip” project
2. Build the project for WebGL
3. Unzip the “NAME.framework.js.gz” file in the “NAME/Build” directory, where NAME is the given Player name
4. Rename the unzipped “NAME.framework.js” file to “NAME.framework.js.gz”
5. Go to the Player directory in your terminal and run “python -m http.server”
6. Go to localhost:8000 in your browser and observe the browser window

Expected result: A clear error appears about incorrect headers
Actual result: An alert pops up with a stack trace inside it

Reproducible with: 2021.3.44f1, 2022.3.50f1, 6000.0.23f1

Reproducible on: macOS 15.0 (M1 Max)
Not reproducible on: No other environment tested