|
@@ -481,7 +481,7 @@ if (typeof PDFJS === 'undefined') {
|
|
|
}
|
|
|
})();
|
|
|
|
|
|
-// Support: IE<11, Chrome<21, Android<4.4
|
|
|
+// Support: IE<11, Chrome<21, Android<4.4, Safari<6
|
|
|
(function checkSetPresenceInImageData() {
|
|
|
// IE < 11 will use window.CanvasPixelArray which lacks set function.
|
|
|
if (window.CanvasPixelArray) {
|
|
@@ -495,21 +495,21 @@ if (typeof PDFJS === 'undefined') {
|
|
|
} else {
|
|
|
// Old Chrome and Android use an inaccessible CanvasPixelArray prototype.
|
|
|
// Because we cannot feature detect it, we rely on user agent parsing.
|
|
|
- var polyfill = false;
|
|
|
+ var polyfill = false, versionMatch;
|
|
|
if (navigator.userAgent.indexOf('Chrom') >= 0) {
|
|
|
- var versionMatch = navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./);
|
|
|
- if (versionMatch && parseInt(versionMatch[2]) < 21) {
|
|
|
- // Chrome < 21 lacks the set function.
|
|
|
- polyfill = true;
|
|
|
- }
|
|
|
+ versionMatch = navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./);
|
|
|
+ // Chrome < 21 lacks the set function.
|
|
|
+ polyfill = versionMatch && parseInt(versionMatch[2]) < 21;
|
|
|
} else if (navigator.userAgent.indexOf('Android') >= 0) {
|
|
|
// Android < 4.4 lacks the set function.
|
|
|
// Android >= 4.4 will contain Chrome in the user agent,
|
|
|
// thus pass the Chrome check above and not reach this block.
|
|
|
- var isOldAndroid = /Android\s[0-4][^\d]/g.test(navigator.userAgent);
|
|
|
- if (isOldAndroid) {
|
|
|
- polyfill = true;
|
|
|
- }
|
|
|
+ polyfill = /Android\s[0-4][^\d]/g.test(navigator.userAgent);
|
|
|
+ } else if (navigator.userAgent.indexOf('Safari') >= 0) {
|
|
|
+ versionMatch = navigator.userAgent.
|
|
|
+ match(/Version\/([0-9]+)\.([0-9]+)\.([0-9]+) Safari\//);
|
|
|
+ // Safari < 6 lacks the set function.
|
|
|
+ polyfill = versionMatch && parseInt(versionMatch[1]) < 6;
|
|
|
}
|
|
|
|
|
|
if (polyfill) {
|