Customizer: Show a warning when IE <=9 or Safari is used

[XhmikosR]

Since the customizer doesn't work on IE <= 9 due to at least FileSaver.js, maybe we should show an extra warning there.

[cvrebert]

Might also want to warn on Safari; see #12567.

[XhmikosR]

Sounds good, yes.

[zlatanvasovic]

• http://stackoverflow.com/questions/5916900/detect-version-of-browser
• https://github.com/madrobby/zepto/blob/master/src/detect.js (but we aren't using Zepto so I can't just use $.browser.*)

[supergibbs]

@zdroid For IE 9, conditional comments are pretty reliable.

http://msdn.microsoft.com/en-us/library/ms537512.ASPX

[zlatanvasovic]

Yes, but I don't want that. I want to just add new code to the customizer.js.

[supergibbs]

How about using the feature detection mentioned in the FileSaver.js docs? That should solve both IE9 and Safari 6
try { var isFileSaverSupported = !!new Blob(); } catch(e){}

[zlatanvasovic]

OK, that sounds nice. ;P

2014-02-09 11:28 GMT+01:00 Jesse Mandel notifications@github.com:

How about using the feature detection mentioned in the FileSaver.js docs?
That should solve both IE9 and Safari 6
try { var isFileSaverSupported = !!new Blob(); } catch(e){}

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Zlatan Vasović - ZDroid