From 548b01ab7c941afa3f1ff5741df47a061facc56d Mon Sep 17 00:00:00 2001
From: Usman Khalid <2200617@gmail.com>
Date: Wed, 1 Oct 2014 18:12:30 +0500
Subject: [PATCH] Disable http range requests in pdf.js.

A bug in pdf.js or Chrome is causing pdf books to not load.

TNL-488
---
 lms/djangoapps/staticbook/views.py | 2 +-
 lms/templates/static_pdfbook.html  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lms/djangoapps/staticbook/views.py b/lms/djangoapps/staticbook/views.py
index dd517687f8..eda28d9b7a 100644
--- a/lms/djangoapps/staticbook/views.py
+++ b/lms/djangoapps/staticbook/views.py
@@ -106,7 +106,7 @@ def pdf_index(request, course_id, book_index, chapter=None, page=None):
         viewer_params += current_chapter['url']
         current_url = current_chapter['url']
 
-    viewer_params += '#zoom=page-fit'
+    viewer_params += '#zoom=page-fit&disableRange=true'
     if page is not None:
         viewer_params += '&amp;page={}'.format(page)
 
diff --git a/lms/templates/static_pdfbook.html b/lms/templates/static_pdfbook.html
index bbef467bc0..c76dd9265b 100644
--- a/lms/templates/static_pdfbook.html
+++ b/lms/templates/static_pdfbook.html
@@ -18,7 +18,7 @@ $(function(){
     e.preventDefault();
     var url = $(this).attr('rel');
     $('#viewer-frame').attr({
-        'src': '${request.path}?viewer=true&file=' + url + '#zoom=page-fit',
+        'src': '${request.path}?viewer=true&file=' + url + '#zoom=page-fit&disableRange=true',
         'title': $(this).text()
         });
     $('#viewer-frame').focus();