diff --git a/tools/proofers/preview.js b/tools/proofers/preview.js
index 8b54b16404..292e30fc96 100644
--- a/tools/proofers/preview.js
+++ b/tools/proofers/preview.js
@@ -630,6 +630,7 @@ var makePreview = function (txt, viewMode, styler) {
 
         function boldLine() {   // false if any non-bold char found
             var result1;
+            re1.lastIndex = 0;  // else will be left from previous use
             while (true) {
                 result1 = re1.exec(headLine);
                 if (null === result1) {
diff --git a/tools/proofers/proof_frame_enh.inc b/tools/proofers/proof_frame_enh.inc
index 309ce2f344..b72c72b662 100644
--- a/tools/proofers/proof_frame_enh.inc
+++ b/tools/proofers/proof_frame_enh.inc
@@ -15,7 +15,7 @@ function echo_proof_frame_enh( $ppage )
     $header_args = array(
         "css_files" => array("$code_url/styles/preview.css?a=16111501"),
         "js_files" => array(
-            "preview.js?17010501",
+            "preview.js?17011101",
             "previewControl.js?16111501",
             "preview_strings.php",
 
diff --git a/tools/proofers/text_frame_std.inc b/tools/proofers/text_frame_std.inc
index b0be672d71..0991448fd6 100644
--- a/tools/proofers/text_frame_std.inc
+++ b/tools/proofers/text_frame_std.inc
@@ -11,7 +11,7 @@ function echo_text_frame_std( $ppage )
     $header_args = array(
         "css_files" => array("$code_url/styles/preview.css?a=16111501"),
         "js_files" => array(
-            "preview.js?17010501",
+            "preview.js?17011101",
             "previewControl.js?16111501",
             "preview_strings.php",
         ),