Html5 browser error 4.5

thanks

var PACKAGE_NAME = 'D:ue4 projectsFootGardening2 4.5BinariesHTML5FootGardening2.data';

to

var PACKAGE_NAME = 'FootGardening2.data';

this did not fix it, exactly the same error
although the downloading bar briefly appeared, it did not before

Use of getUserData() or setUserData() is deprecated.  Use WeakMap or element.dataset instead. requestNotifier.js:63
SyntaxError: malformed Unicode character escape sequence FootGardening2.data.js:1177
Successfully compiled .js code (loaded from cache in 992ms) UE4Game-HTML5-Shipping.js
"run() called, but dependencies remain, so not running" FootGardening2-HTML5-Shipping.html:231
"pre-main prep time: 248 ms" FootGardening2-HTML5-Shipping.html:231
113 FootGardening2-HTML5-Shipping.html:231
uncaught exception: abort() at stackTrace@http://www.tegleg.co.uk/ue4/foot/UE4Game-HTML5-Shipping.js:1:21057
abort@http://www.tegleg.co.uk/ue4/foot/UE4Game-HTML5-Shipping.js:222:62112
iMA@http://www.tegleg.co.uk/ue4/foot/UE4Game-HTML5-Shipping.js:213:83473
UOa@http://www.tegleg.co.uk/ue4/foot/UE4Game-HTML5-Shipping.js:177:799552
Gl@http://www.tegleg.co.uk/ue4/foot/UE4Game-HTML5-Shipping.js:137:42836
Ol@http://www.tegleg.co.uk/ue4/foot/UE4Game-HTML5-Shipping.js:137:50516
callMain@http://www.tegleg.co.uk/ue4/foot/UE4Game-HTML5-Shipping.js:222:60680
doRun@http://www.tegleg.co.uk/ue4/foot/UE4Game-HTML5-Shipping.js:222:61527
run/<@http://www.tegleg.co.uk/ue4/foot/UE4Game-HTML5-Shipping.js:222:61705

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