modernizr
Version:
Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the user’s browser.
35 lines (31 loc) • 956 B
JavaScript
/*!
{
"name": "Webp Lossless",
"async": true,
"property": ["webplossless", "webp-lossless"],
"tags": ["image"],
"authors": ["@amandeep", "Rich Bradshaw", "Ryan Seddon", "Paul Irish"],
"notes": [{
"name": "Webp Info",
"href": "https://developers.google.com/speed/webp/"
},{
"name": "Webp Lossless Spec",
"href": "https://developers.google.com/speed/webp/docs/webp_lossless_bitstream_specification"
}]
}
!*/
/* DOC
Tests for non-alpha lossless webp support.
*/
define(['Modernizr', 'addTest'], function(Modernizr, addTest) {
Modernizr.addAsyncTest(function() {
var image = new Image();
image.onerror = function() {
addTest('webplossless', false, {aliases: ['webp-lossless']});
};
image.onload = function() {
addTest('webplossless', image.width == 1, {aliases: ['webp-lossless']});
};
image.src = 'data:image/webp;base64,UklGRh4AAABXRUJQVlA4TBEAAAAvAAAAAAfQ//73v/+BiOh/AAA=';
});
});