diff --git a/cps/helper.py b/cps/helper.py
index d7cb3a90..52e96b6c 100755
--- a/cps/helper.py
+++ b/cps/helper.py
@@ -280,7 +280,7 @@ def get_valid_filename(value, replace_whitespace=True):
             value = unicode(re_slugify.sub('', value).strip())
     if replace_whitespace:
         #*+:\"/<>? are replaced by _
-        value = re.sub('[\*\+:\\\"/<>\?]+', u'_', value, flags=re.U)
+        value = re.sub(r'[\*\+:\\\"/<>\?]+', u'_', value, flags=re.U)
 
     value = value[:128]
     if not value:
diff --git a/cps/static/js/edit_books.js b/cps/static/js/edit_books.js
index 3932e3b6..96fcc848 100644
--- a/cps/static/js/edit_books.js
+++ b/cps/static/js/edit_books.js
@@ -46,8 +46,7 @@ function prefixedSource(prefix, query, cb, bhAdapter) {
 
 function getPath() {
     var jsFileLocation = $("script[src*=edit_books]").attr("src");  // the js file path
-    jsFileLocation = jsFileLocation.replace("/static/js/edit_books.js", "");   // the js folder path
-    return jsFileLocation;
+    return jsFileLocation.substr(0,jsFileLocation.search("/static/js/edit_books.js"));   // the js folder path
 }
 
 var authors = new Bloodhound({