webp.js 797 B

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  1. "use strict";/*!
  2. * ligang <lg@iligang.com>
  3. * 2.0.19.0412 <2019-04-12 19:04:12>
  4. * JavaScript to determine if the browser supports webp images.
  5. */!function(){var t=!1;try{var e=window.sessionStorage&&window.sessionStorage.getItem("isWebPSupport");null!==e&&(t=Boolean(e))}catch(e){}if(t)document.getElementsByTagName("html")[0].setAttribute("class","webp");else{var s=new Image;s.onload=function(){var e=0<s.width&&0<s.height;if(t=e,document.getElementsByTagName("html")[0].setAttribute("class",e?"webp":"normal"),e)try{window.sessionStorage&&window.sessionStorage.setItem("isWebPSupport",!0)}catch(e){}},s.onerror=function(){document.getElementsByTagName("html")[0].setAttribute("class","normal")},s.src="data:image/webp;base64,UklGRiIAAABXRUJQVlA4IBYAAAAwAQCdASoBAAEADsD+JaQAA3AAAAAA"}}();