I have found a workaround for this issue: setting Chromium to single-thread mode will allow it to work in the IDE; albeit at a lower performance. I've added a chromium_create_test() function that will launch it in this mode. I've also added a scr_demo_check_if_ide script to the demo project that can be used to determine whether the game is running inside the IDE, so you can decide whether to launch the chromium_create() or chromium_create_test() functions (see demo project for implementation details)