diff --git a/bower.json b/bower.json
index 27fd07061..2f70715bc 100644
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "pdfjs-dist",
-  "version": "1.2.28",
+  "version": "1.2.30",
   "main": [
     "build/pdf.js",
     "build/pdf.worker.js"
diff --git a/build/pdf.combined.js b/build/pdf.combined.js
index 5c6bfb46c..c8ce3f964 100644
--- a/build/pdf.combined.js
+++ b/build/pdf.combined.js
@@ -22,8 +22,8 @@ if (typeof PDFJS === 'undefined') {
   (typeof window !== 'undefined' ? window : this).PDFJS = {};
 }
 
-PDFJS.version = '1.2.28';
-PDFJS.build = '5111422';
+PDFJS.version = '1.2.30';
+PDFJS.build = '4afd51a';
 
 (function pdfjsWrapper() {
   // Use strict in our context only - users might not want it
@@ -2794,6 +2794,9 @@ var WorkerTransport = (function WorkerTransportClosure() {
       }, this);
 
       messageHandler.on('StartRenderPage', function transportRender(data) {
+        if (this.destroyed) {
+          return; // Ignore any pending requests if the worker was terminated.
+        }
         var page = this.pageCache[data.pageIndex];
 
         page.stats.timeEnd('Page Request');
@@ -2801,6 +2804,9 @@ var WorkerTransport = (function WorkerTransportClosure() {
       }, this);
 
       messageHandler.on('RenderPageChunk', function transportRender(data) {
+        if (this.destroyed) {
+          return; // Ignore any pending requests if the worker was terminated.
+        }
         var page = this.pageCache[data.pageIndex];
 
         page._renderPageChunk(data.operatorList, data.intent);
diff --git a/build/pdf.js b/build/pdf.js
index c55b1b426..4b08ba126 100644
--- a/build/pdf.js
+++ b/build/pdf.js
@@ -22,8 +22,8 @@ if (typeof PDFJS === 'undefined') {
   (typeof window !== 'undefined' ? window : this).PDFJS = {};
 }
 
-PDFJS.version = '1.2.28';
-PDFJS.build = '5111422';
+PDFJS.version = '1.2.30';
+PDFJS.build = '4afd51a';
 
 (function pdfjsWrapper() {
   // Use strict in our context only - users might not want it
@@ -2847,6 +2847,9 @@ var WorkerTransport = (function WorkerTransportClosure() {
       }, this);
 
       messageHandler.on('StartRenderPage', function transportRender(data) {
+        if (this.destroyed) {
+          return; // Ignore any pending requests if the worker was terminated.
+        }
         var page = this.pageCache[data.pageIndex];
 
         page.stats.timeEnd('Page Request');
@@ -2854,6 +2857,9 @@ var WorkerTransport = (function WorkerTransportClosure() {
       }, this);
 
       messageHandler.on('RenderPageChunk', function transportRender(data) {
+        if (this.destroyed) {
+          return; // Ignore any pending requests if the worker was terminated.
+        }
         var page = this.pageCache[data.pageIndex];
 
         page._renderPageChunk(data.operatorList, data.intent);
diff --git a/build/pdf.worker.js b/build/pdf.worker.js
index 0124774a2..0c45783d0 100644
--- a/build/pdf.worker.js
+++ b/build/pdf.worker.js
@@ -22,8 +22,8 @@ if (typeof PDFJS === 'undefined') {
   (typeof window !== 'undefined' ? window : this).PDFJS = {};
 }
 
-PDFJS.version = '1.2.28';
-PDFJS.build = '5111422';
+PDFJS.version = '1.2.30';
+PDFJS.build = '4afd51a';
 
 (function pdfjsWrapper() {
   // Use strict in our context only - users might not want it
diff --git a/package.json b/package.json
index 173721fc4..c24ce0239 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pdfjs-dist",
-  "version": "1.2.28",
+  "version": "1.2.30",
   "description": "Generic build of Mozilla's PDF.js library.",
   "keywords": [
     "Mozilla",