Do you mean with 'different server' a different web server, but serving the 
same emscripten application files? I haven't come across such a case yet 
where client-side behaviour would differ in such a way. The only difference 
I've seen is whether certain file types are served compressed or 
uncompressed, but that only increases download time, not behaviour of the 
app.

Am Samstag, 2. September 2017 19:53:48 UTC+8 schrieb Ivan Gyulev:
>
> Hi Floh,
> Thanks for the prompt reply. It happens in all browsers unfortunately and 
> it works OK on another server. Same thing with a similar code where it 
> works on another server and we get :
>
>
> embed.js:117 Uncaught TypeError: Cannot read property 'FileSystem' of 
> undefined
>     at idbfsInit (embed.js:117)
>     at Object.success (embed.js:389)
>     at i (jquery-3.1.0.min.js:2)
>     at Object.fireWith [as resolveWith] (jquery-3.1.0.min.js:2)
>     at A (jquery-3.1.0.min.js:4)
>     at XMLHttpRequest.<anonymous> (jquery-3.1.0.min.js:4)
>
> Should we check in the server security settings as the browsers seem to 
> work on one site and not on another? 
> Thanks again.
>
> On Friday, September 1, 2017 at 5:30:08 PM UTC+2, Ivan Gyulev wrote:
>>
>>  Hi guys,
>> I am trying to run an application that relies on Emscripten (we have that 
>> installed) but we always seem to get this error:
>>
>> Uncaught TypeError: Cannot set property 'widthNative' of undefined
>>     at Object.updateCanvasDimensions (snes.prg:1)
>>     at Object.setCanvasSize (snes.prg:1)
>>     at _emscripten_set_canvas_size (snes.prg:1)
>>     at Object.rD [as _main] (snes.prg:17)
>>     at Object.callMain (snes.prg:36)
>>     at doRun (snes.prg:36)
>>     at run (snes.prg:36)
>>     at runCaller (snes.prg:36)
>>     at removeRunDependency (snes.prg:1)
>>     at applyMemoryInitializer (snes.prg:36)
>>
>>
>> Can this be script specific or perhaps it's an Emscripten problem? It 
>> seems the script runs just fine on other servers.
>> Thanks.
>>
>

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