diff --git a/seahub/templates/snippets/file_content_js.html b/seahub/templates/snippets/file_content_js.html
index 2f0e77ef57..1cc9eccdba 100644
--- a/seahub/templates/snippets/file_content_js.html
+++ b/seahub/templates/snippets/file_content_js.html
@@ -92,7 +92,7 @@ window.onload = function () {
 {% endif %}
 
 {% if filetype == 'PDF' and use_pdfjs %}
-if (!($.browser.msie && parseInt($.browser.version) < 10)) {
+try {
     PDFJS.workerSrc = '{{MEDIA_URL}}js/pdf.worker.js';
     $('#file-view').html('<div id="pdf"><span class="loading-icon loading-tip"></span></div>');
     PDFJS.getDocument("{{ raw_path|escapejs }}").then(function(pdf) {
@@ -129,7 +129,7 @@ if (!($.browser.msie && parseInt($.browser.version) < 10)) {
         getPageAndRender(1);
     });
 
-} else {
+} catch(e) {
     $('#file-view').html('<div id="file-view-tip"><p>{% trans "You can use IE 10 or other browsers, for example, Firefox, to view it online." %}</p></div>');
 }
 {% endif %}
diff --git a/seahub/templates/view_file_pdf.html b/seahub/templates/view_file_pdf.html
index 7d30aa5fb3..14f324ff4e 100644
--- a/seahub/templates/view_file_pdf.html
+++ b/seahub/templates/view_file_pdf.html
@@ -25,7 +25,7 @@
 {% else %}
 <script type="text/javascript" src="{{MEDIA_URL}}js/pdf.js"></script>
 <script type="text/javascript">
-if (!($.browser.msie && parseInt($.browser.version) < 10)) {
+try {
     PDFJS.workerSrc = '{{MEDIA_URL}}js/pdf.worker.js';
     $('#file-view').html('<div id="pdf"><span class="loading-icon loading-tip"></span></div>');
     PDFJS.getDocument("{{ raw_path|escapejs }}").then(function(pdf) {
@@ -62,7 +62,7 @@ if (!($.browser.msie && parseInt($.browser.version) < 10)) {
         getPageAndRender(1);
     });
 
-} else {
+} catch(e) {
     var tip = "{% trans "You can use IE 10 or other browsers, for example, Firefox, to view it online." %}";
     $('#file-view').html('<div id="file-view-tip"><p>' + tip + '</p></div>');
 }