1. Download and open attached project
2. Try to build it for WebGL
3. See that it does not build and an IL2CPP error appears in console - picture in last edit

Expected result: Building for WebGL works normally
Actual result: IL2CPP error and project does not build

Reproduced on 5.3.4f1, 5.5.0b3, 5.5.0b5
Could not test on older versions because of older compiler issues.

Even though the method is properly implemented, it is not found when building for WebGL