accessibility - WAI-ARIA: Javascript Capability Testing? -


in spirit of progressive enhancement, i'd aria capabilities testing implement additional enhancements if they're supported browser. i'm not looking detect screen readers—i'm looking ensure screen reader users optimal experience given tools they're using.

for example, if aria-live attribute not supported, may not idea implement endless scrolling.

i'm aware there's additional concern browsers may support these attributes screen reader may not. since screen readers run transparently on browsers, i'm okay edge case being ignored.

i've never heard of doing this. easy testing additional dom properties endowed browsers? 1 of mark pilgrim's other capability testing techniques work here?

thanks!

the first answer has incorrect information. browsers support wai-aria , don't. browsers send events screen readers via operating system's accessibility api. if use ie 7, example, cannot deal wai-aria ie 8 can. @ this graphic

that being said, can't testing determine tags supported. in general, limited wai-aria support began in ff2 , ie8. @ release notes of browser determine wai-aria support has.

here a link details testing wai-aria


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