Crash due to out of memory on iOS

[sachinB94]

The same thing as #97, but this time for iOS.

It crashes the app sometimes when trying to compress images, throwing Terminated due to memory issue on iOS device. It doesn't catches the memory exception, instead, crashes the app.

I think it should catch the exception and throw it in JavaScript, so that the developer can handle the issue.

[pribeh]

Same here

[suthat]

The same issue, please help

[pribeh]

I believe this fix will resolve this issue. It has for us.

#205