change supportsArrayBuffer check to work with Safari

[chmanie]

Safari reports the type of ArrayBuffer as 'object' (sic). This fixes the support check for the ArrayBuffer class.

[MrRio]

Thanks!

[diegocr]

FYI: Changes made to the dist files will be destroyed on the next build process.

Also, just wondering... if "Safari reports the type of ArrayBuffer as 'object'", how would typeof ArrayBuffer === 'function' causes a problem? it isn't checking against object and therefore i think you'll still get the same "Unsupported PNG image data" regardless. I'm missing something?

[MrRio]

Ah yeah, didn't notice this was to dist.

Yeah not too sure. I shall fire it up in Safari
ᐧ

On Wed, May 7, 2014 at 5:41 PM, Diego Casorran notifications@github.comwrote:

FYI: Changes made to the dist files will be destroyed on the next build
process.

Also, just wondering... if "Safari reports the type of ArrayBuffer as
'object'", how would typeof ArrayBuffer === 'function' causes a problem?
it isn't checking against object and therefore i think you'll still get
the same "Unsupported PNG image data" regardless. I'm missing something?

—
Reply to this email directly or view it on GitHubhttps://github.com//pull/248#issuecomment-42451291
.

James Hall
Director

Parallax

Send big files to us using WeTransfer
– https://parallaxagency.wetransfer.com/
https://parallaxagency.wetransfer.com/

+44 113 322 6477
http://parall.ax/

Registered office: The Old Brewery, High Court, Leeds, LS2 7ES
Registered in England no. 07430032
VAT No. 101 3405 84

[chmanie]

Ah I'm sorry, I didn't notice either.
typeof ArrayBuffer === 'function' does not cause a problem. It results in throwing a 'PNG not supported' error, when it is actually supported. ArrayBuffer IS a function in Safari, but it's typeof is shown as 'object' (which is kind of correct, but not helpful).

I'm going to send a PR for the src.

[diegocr]

Oh, i get that wrong, i thought Safari didn't support ArrayBuffer being the type a dummy/null object, according to MDN it is supported since version 5.1

Well, thanks chmanie :-)