|  | @@ -1247,6 +1247,7 @@ MessageHandler.prototype = {
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				|  |  |          if (this.isCancelled) {
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				|  |  |            return;
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				|  |  |          }
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				|  |  | +        this.isCancelled = true;
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				|  |  |          sendStreamRequest({ stream: 'close' });
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				|  |  |          delete self.streamSinks[streamId];
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				|  |  |        },
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				|  | @@ -13674,8 +13675,8 @@ var _UnsupportedManager = function UnsupportedManagerClosure() {
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				|  |  |  }();
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				|  |  |  var version, build;
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				|  |  |  {
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				|  |  | -  exports.version = version = '1.9.472';
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				|  |  | -  exports.build = build = '5f372cda';
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				|  |  | +  exports.version = version = '1.9.474';
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				|  |  | +  exports.build = build = 'd368a5ba';
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				|  |  |  }
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				|  |  |  exports.getDocument = getDocument;
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				|  |  |  exports.LoopbackPort = LoopbackPort;
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				|  | @@ -29031,8 +29032,8 @@ if (!_global_scope2.default.PDFJS) {
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				|  |  |  }
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				|  |  |  var PDFJS = _global_scope2.default.PDFJS;
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				|  |  |  {
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				|  |  | -  PDFJS.version = '1.9.472';
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				|  |  | -  PDFJS.build = '5f372cda';
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				|  |  | +  PDFJS.version = '1.9.474';
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				|  |  | +  PDFJS.build = 'd368a5ba';
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				|  |  |  }
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				|  |  |  PDFJS.pdfBug = false;
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				|  |  |  if (PDFJS.verbosity !== undefined) {
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				|  | @@ -50338,8 +50339,8 @@ exports.PDFDataTransportStream = PDFDataTransportStream;
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				|  |  |  "use strict";
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				|  |  |  
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				|  |  |  
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				|  |  | -var pdfjsVersion = '1.9.472';
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				|  |  | -var pdfjsBuild = '5f372cda';
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				|  |  | +var pdfjsVersion = '1.9.474';
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				|  |  | +var pdfjsBuild = 'd368a5ba';
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				|  |  |  var pdfjsSharedUtil = __w_pdfjs_require__(0);
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				|  |  |  var pdfjsDisplayGlobal = __w_pdfjs_require__(70);
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				|  |  |  var pdfjsDisplayAPI = __w_pdfjs_require__(37);
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