javascript - canPlayType always returning maybe? Am I missing something? -


i'm using canplaytype() determine if browser can play specific video format before load video tag, when test it, returns "maybe" video formats. code below. missing something?

canitplay1 = document.getelementbyid('intro_video').canplaytype('video/webm'); canitplay2 = document.getelementbyid('intro_video').canplaytype('video/ogg'); canitplay3 = document.getelementbyid('intro_video').canplaytype('video/mp4');  alert("can play type? "+canitplay1+canitplay2+canitplay3);

try use codecs, along type while alling canplaytype() canplaytype('video/webm',codecs ="mp4a.40.5"). if include codecs, "probably" result.


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