HTML5 Build Not Working

So the actual building process of the game goes fine and it generates all my JS and HTML files, but when I try running it on Firefox or Firefox Nightly it gives me the following errors when I travel to a different level

Error: uncaught exception: abort() at jsStackTrace@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:1:18330
stackTrace@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:1:18513
abort@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:52:51459
cmR@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:45:474201
G5z@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:8:1094988
FzM@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:16:1162701
$vM@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:16:915870
vqM@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:16:594171
_gM@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:16:185343
b2c@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:13:736176
_1c@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:13:734657
vmc@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:13:281094
umc@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:13:279738
qmc@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:13:278445
zWt@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:21:233799
sFw@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:7:135362
tFw@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:7:136155
YFw@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:7:157177
bGw@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:7:160020
O5t@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:21:505718
nS@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:24:144869
v5t@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:21:493815
R0t@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:21:388602
S0t@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:21:391434
Cmv@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:29:25408
QWt@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:21:247906
Wpv@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:29:119241
Kpv@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:29:102125
Rpv@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:29:106801
aXt@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:21:253499
jX@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:24:249463
mX@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:24:250943
ikR@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:45:464993
Runtime.dynCall@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:1:4451
Browser_mainLoop_runner/<@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:1:164138
Browser.mainLoop.runIter@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:1:165625
Browser_mainLoop_runner@file:///C:/Users//Documents/Unreal%20Projects/AdventuresOfBandBoy/Binaries/HTML5/AdventuresOfBandBoy-HTML5-Shipping.js:1:164034

If this abort() is unexpected, build with -s ASSERTIONS=1 which can give more information.

Hey Silentbaws,

Thank you for taking the time to report this issue, and we appreciate your patience while awaiting a response. In order to assist you in an effective manner, we would like to see if you are still experiencing the issue you are reporting in engine versions 4.8.3 and/or 4.9.2?

If so, would you mind providing some simple steps, screenshots, or any other relevant pieces of information to help us reproduce the issue on our end?

If you are experiencing a crash or a major bug, we ask that you take a look at our ‘How to Report a Bug’ sticky post on our Forums. It will give you all the correct instructions on how to make an official bug report on the AnswerHub, including the information needed in order to move forward with the reporting/troubleshooting process.

Please do not hesitate to ask questions or post any new comments in regards to the issue.

Thanks,