Space Shooter on HTML5?

I just finished the official Space Shooter tutorial, building for the web player, as well desktop. Unfortunately, when trying to export to HTML5, i got lot’s of errors:

An error occured running the Unity content on this page. See your browser's JavaScript console for more info. The error was:
uncaught exception: abort() at jsStackTrace@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:1000:13
stackTrace@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:1017:22
abort@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:3153142:25
nullFunc_ii@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:14465:465
b114@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:3148629:34
__ZN5Unity8Material14CreateMaterialER6Shaderib [Unity::Material::CreateMaterial(int&, bool)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:1547103:9
__ZN2UI24GetDefaultUITextMaterialEv [UI::GetDefaultUITextMaterial()]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2350856:9
__Z42Canvas_CUSTOM_GetDefaultCanvasTextMaterialv [Canvas_CUSTOM_GetDefaultCanvasTextMaterial()]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2359922:8
__Z41Canvas_GetDefaultCanvasTextMaterial_m1976P8Object_tP10MethodInfo [Canvas_GetDefaultCanvasTextMaterial_m1976(MethodInfo?**)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2930665:8
__Z30Text_get_defaultMaterial_m1020P8Text_t29P10MethodInfo [Text_get_defaultMaterial_m1020(MethodInfo?**)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2887944:9
__ZN16VirtFuncInvoker0IP13Material_t159E6InvokeEP10MethodInfoPv [void undefined<undefined?n?>?o? VirtFuncInvoker0<Material_t159?*, undefined?6?>?k()]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2861234:8
__Z25Graphic_get_material_m528P12Graphic_t168P10MethodInfo [Graphic_get_material_m528(MethodInfo?**)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2861215:9
__Z33MaskableGraphic_get_material_m766P20MaskableGraphic_t189P10MethodInfo [MaskableGraphic_get_material_m766(MethodInfo?**)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2877725:10
__ZN16VirtFuncInvoker0IP13Material_t159E6InvokeEP10MethodInfoPv [void undefined<undefined?n?>?o? VirtFuncInvoker0<Material_t159?*, undefined?6?>?k()]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2861234:8
__Z37Graphic_get_materialForRendering_m530P12Graphic_t168P10MethodInfo [Graphic_get_materialForRendering_m530(MethodInfo?**)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2861291:9
__ZN16VirtFuncInvoker0IP13Material_t159E6InvokeEP10MethodInfoPv [void undefined<undefined?n?>?o? VirtFuncInvoker0<Material_t159?*, undefined?6?>?k()]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2861234:8
__Z27Graphic_UpdateMaterial_m537P12Graphic_t168P10MethodInfo [Graphic_UpdateMaterial_m537(MethodInfo?**)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2861840:8
__ZN18VirtActionInvoker06InvokeEP10MethodInfoPv [VirtActionInvoker0::Invoke(void**)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2444890:2
__Z20Graphic_Rebuild_m535P12Graphic_t168iP10MethodInfo [Graphic_Rebuild_m535(int*, MethodInfo?*)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2861646:2
__ZN23InterfaceActionInvoker1IiE6InvokeEP10MethodInfoPvi [Invoke? InterfaceActionInvoker1<int>(void**, int)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2445113:2
__Z39CanvasUpdateRegistry_PerformUpdate_m453P25CanvasUpdateRegistry_t149P10MethodInfo [CanvasUpdateRegistry_PerformUpdate_m453(MethodInfo?**)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2859086:5
__Z31WillRenderCanvases_Invoke_m2786P23WillRenderCanvases_t343P10MethodInfo [WillRenderCanvases_Invoke_m2786(MethodInfo?**)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2930365:3
__ZN18VirtActionInvoker06InvokeEP10MethodInfoPv [VirtActionInvoker0::Invoke(void**)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2444890:2
__Z35Canvas_SendWillRenderCanvases_m2790P8Object_tP10MethodInfo [Canvas_SendWillRenderCanvases_m2790(MethodInfo?**)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2930683:2
__Z23RuntimeInvoker_Void_t36P10MethodInfoPvPS1_ [RuntimeInvoker_Void_t36?1(void**, undefined?S?*)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2938322:2
__ZN6il2cpp2vm7Runtime6InvokeEP10MethodInfoPvPS4_PP12Il2CppObject [il2cpp::vm::Runtime::Invoke?4(void**, undefined?S?*)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:95209:8
_il2cpp_runtime_invoke@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:30841:8
__Z20il2cpp_invoke_method21ScriptingMethodIl2CppP15ScriptingObjectP18ScriptingArgumentsPP18ScriptingExceptionb [il2cpp_invoke_method?2()]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:1208254:9
__ZN19ScriptingInvocation6InvokeEPP18ScriptingExceptionb [ScriptingInvocation::Invoke(bool**)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:1474685:9
__ZN19ScriptingInvocation6InvokeEPP18ScriptingException [ScriptingInvocation::Invoke(ScriptingException?**)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:1474634:8
__ZN19ScriptingInvocation6InvokeEv [ScriptingInvocation::Invoke()]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:1474584:8
__ZZN2UI23InitializeCanvasManagerEvEN18WillRenderCanvases7ForwardE_4v [undefined?Z()]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2358843:3
__Z10PlayerLoopbbP10IHookEvent [PlayerLoop(bool, bool, IHookEvent?*)]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:1368761:5
__ZL8mainloopv [mainloop()]@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:2392320:2
dynCall_v@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:3147741:7
Runtime.dynCall@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:281:14
Browser_mainLoop_runner/<@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:10271:13
Browser.mainLoop.runIter@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:6860:13
Browser_mainLoop_runner@file:///C:/Users/vinc/Desktop/space-shooter/Development/space-shooter.js:10267:9

Any ideas?

This looks like it might be a stripping issue. Does it work if you build with stripping disabled?

Stripping is disabled. Development build.

Then please file a bug.