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**Category:** Platform & Builds\
**Tags:** source-code, HTML5, unreal-engine, bug-report, packaging-projects, CPP, question\
**Created:** [November 3, 2015, 7:46pm UTC](https://forums.unrealengine.com/t/html5-export-utility-js-append-bug/337355 "2015-11-03T19:46:00Z")\
**Posts on this page:** 3\
**Page:** 1
**Author:**  [@anonymous\_user\_1d9c3aac](https://forums.unrealengine.com/u/anonymous_user_1d9c3aac)\
**Post date:** [November 3, 2015, 7:46pm UTC](https://forums.unrealengine.com/t/html5-export-utility-js-append-bug/337355/1 "2015-11-03T19:46:00Z")
Currently, when the project is packaged for HTML, a Utility.js file gets created and is being populated with the content of a few js files coming with the source.
With each packaging, this file gets bigger and bigger as it is **appended** by AutomationTool.
[Click to see the code in Unreal Engine Github repository][1]
```
string DestinationFile = OutDir + "/Utility.js";
foreach( var UtilityFile in UtilityJavaScriptFiles)
{
string Data = File.ReadAllText(UtilityFile);
File.AppendAllText(DestinationFile, Data);
}
```
Content of the file must be cleaned (if exists) before appending.
[https://github.com/EpicGames/UnrealEngine/blob/a27ad66f0a075f3b74ef8f68a4b2b0da4882425e/Engine/Source/Programs/AutomationTool/HTML5/HTML5Platform.Automation.cs#L157](https://github.com/EpicGames/UnrealEngine/blob/a27ad66f0a075f3b74ef8f68a4b2b0da4882425e/Engine/Source/Programs/AutomationTool/HTML5/HTML5Platform.Automation.cs#L157)
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**Author:**  [@anonymous\_user\_a08c0bf2](https://forums.unrealengine.com/u/anonymous_user_a08c0bf2)\
**Post date:** [November 6, 2015, 4:51pm UTC](https://forums.unrealengine.com/t/html5-export-utility-js-append-bug/337355/2 "2015-11-06T16:51:28Z")
Hey ,
Thanks for reporting this. I have verified that this is an issue within the engine and have submitted a report. If you’d like to check on this bug in the future, please reference: UE-23064.
Thank you!
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**Author:**  [@anonymous\_user\_1d9c3aac](https://forums.unrealengine.com/u/anonymous_user_1d9c3aac)\
**Post date:** [November 6, 2015, 5:08pm UTC](https://forums.unrealengine.com/t/html5-export-utility-js-append-bug/337355/3 "2015-11-06T17:08:25Z")
nice to hear that 🙂 thanks