I did a test with an empty project. The project is set to desktop and 2D and 3D escalabe. When attempting to try launch in HTML5, it´s show me a black screen in Chrome (where try to load the game) and in the bottom, the error:
Assertion failed: Can not call on_fatal unknown function (Perhaps LLVM optimizations closure or removed it?)
What am I missing? What am I doing wrong?
Attached log Project Launcher. [link text][1]
32199-projectlauncher.log (39.8 KB)
Hey ,
Currently, HTML5 projects are not working on Chrome. This is why you can no longer launch onto Chrome. However, if you were to launch on to FireFox, or even package the project for HTML5 and create a server, the project would populate in FireFox.
If you have any further questions, or if you’re not able to load HTML5 in FireFox, please reply back and I will be more than happy to assist you further!
Thanks!
Hey !
Is this error with chrome going to be changed in the next update? 4.7.2? or 4.8? 
I would like to add that when we upload our html5 files on a server it works on Chrome.
Just to clarify a little, Chrome should work in shipping builds, which is the build you would use to publish to the web. However, Development builds have memory issues in chrome. When building & testing from the editor you’ll mainly be using Development builds.
The basic advice is use firefox while developing/building/testing your game. Then use a shipping build to publish and chrome/firefox/safari/etc should work.
Thanks a lot guys! It Works Now i can Test my game in Firefox, i gonna test the shipping builds in Chrome.
,
You’re welcome. If you have any further questions, please feel free to get in touch with us again through AnswerHub!
Have a great weekend! 
I would like to know that too
Hey,
JoJo_2nd actually went over this information a couple of posts down. Chrome works in shipping builds but not in development builds, due to memory issues. As far as I am aware, this is something that’s on 's end, not ours.
Use FireFox/ while developing/building/testing your game. Once the game is ready for Shipping, go ahead and push it to Chrome, FireFox/, Safari, etc., and that should work for you.
Thanks!
even shipping its not working for me on chrome
Firefox working perfectly
Hey
I have just tried 4.7.6 as well as 4.8.0, I have been able to get Chrome to work with a shipping build. You may need to change the HEAP size to 256. If you’re working within 4.7.6, you’ll need to modify the HTML5engine.ini file to the following: [BuildSettings] HeapSize=1024
If you’ve upgraded to 4.8.0 Preview 3, you can easily change the HEAP size within the Project Settings within the Editor by going to Edit > Project Settings.
You may also find it helpful to close down all Chrome windows and start fresh before beginning.
Hopefully this information helps you, if you have any further questions, please let us know.
Have a great day!