我正在使用Unity 2017.3.03f免费个人版，我的团结应用程序在桌面和Android平台上正常运行。但是，当它为WebGL版本（未选中“开发构建”选项“）构建时，它会在加载启动画面期间在浏览器中显示此错误：
> An error occurred running the Unity content on this page. See your browser JavaScript console for more info. The error was:
uncaught exception: abort(-1) at jsStackTrace (webgl-11B.asm.framework.unityweb:2:27460)
stackTrace (webgl-11B.asm.framework.unityweb:2:27631)
abort (webgl-11B.asm.framework.unityweb:4:33732)
_il2cpp_gc_disable (webgl-11B.asm.framework.unityweb:2:204426)
scripting_gc_disable() [vNc] (webgl-11B.asm.code.unityweb:10:1)
_main [eNc] (webgl-11B.asm.code.unityweb:10:1)
callMain (webgl-11B.asm.framework.unityweb:4:32097)
doRun (webgl-11B.asm.framework.unityweb:4:32800)
_String_Join_m2050845953 [run] (webgl-11B.asm.framework.unityweb:4:32986)
runCaller (webgl-11B.asm.framework.unityweb:4:31614)
removeRunDependency (webgl-11B.asm.framework.unityweb:2:34407)
processDataJob@file:.../Build/UnityLoader.js:1:17079
我尝试启用开发选项并应用本文的步骤： https://community.gamedev.tv/t/webgl-debugging/54948
到启用调试符号并禁用剥离代码引擎以查看浏览器控制台中的错误。 但是开发版本可以正常运行，但是当我再次发布版本“取消选中开发选项”时，会出现相同的错误。
并且浏览器控制台的日志包含以下消息：
> IndexedDB is not available. Data will not persist in cache and PlayerPrefs will not be saved.
a2ab4d2b-6621-459b-b13f-f9b816ecb2f8:2:124
unreachable code after return statement[Learn More]
a2ab4d2b-6621-459b-b13f-f9b816ecb2f8:2:4519
missing function: il2cpp_gc_disable
UnityLoader.js:1:8039
-1
UnityLoader.js:1:8002
-1
UnityLoader.js:1:8039
Use of the motion sensor is deprecated.
a2ab4d2b-6621-459b-b13f-f9b816ecb2f8:2:54097
Use of the orientation sensor is deprecated.
a2ab4d2b-6621-459b-b13f-f9b816ecb2f8:2:54097
uncaught exception: abort(-1) at jsStackTrace@blob:null/a2ab4d2b-6621-459b-b13f-f9b816ecb2f8:2:27460
stackTrace@blob:null/a2ab4d2b-6621-459b-b13f-f9b816ecb2f8:2:27631
abort@blob:null/a2ab4d2b-6621-459b-b13f-f9b816ecb2f8:4:33732
_il2cpp_gc_disable@blob:null/a2ab4d2b-6621-459b-b13f-f9b816ecb2f8:2:204426
vNc@blob:null/036e0461-a7f5-4bf6-9bcd-65ad983ad95c:10:1
eNc@blob:null/036e0461-a7f5-4bf6-9bcd-65ad983ad95c:10:1
callMain@blob:null/a2ab4d2b-6621-459b-b13f-f9b816ecb2f8:4:32097
doRun@blob:null/a2ab4d2b-6621-459b-b13f-f9b816ecb2f8:4:32800
run@blob:null/a2ab4d2b-6621-459b-b13f-f9b816ecb2f8:4:32986
runCaller@blob:null/a2ab4d2b-6621-459b-b13f-f9b816ecb2f8:4:31614
removeRunDependency@blob:null/a2ab4d2b-6621-459b-b13f-f9b816ecb2f8:2:34407
processDataJob.../UnityLoader.js:1:17079
If this abort() is unexpected, build with -s ASSERTIONS=1 which can give more information.
154
UnityLoader.js:1:8002
154
UnityLoader.js:1:8039
uncaught exception: abort(154) at jsStackTrace@blob:null/a2ab4d2b-6621-459b-b13f-f9b816ecb2f8:2:27460
stackTrace@blob:null/a2ab4d2b-6621-459b-b13f-f9b816ecb2f8:2:27631
abort@blob:null/a2ab4d2b-6621-459b-b13f-f9b816ecb2f8:4:33732
Vxq@blob:null/036e0461-a7f5-4bf6-9bcd-65ad983ad95c:32:1
y7c@blob:null/036e0461-a7f5-4bf6-9bcd-65ad983ad95c:23:1
ynq@blob:null/036e0461-a7f5-4bf6-9bcd-65ad983ad95c:32:1
handlerFunc@blob:null/a2ab4d2b-6621-459b-b13f-f9b816ecb2f8:2:57395
jsEventHandler@blob:null/a2ab4d2b-6621-459b-b13f-f9b816ecb2f8:2:53935
为什么会发生这种错误？是因为使用统一免费版，还是因为应用程序在加载时从资源文件夹中读取了一些文本文件？
提前感谢。