Fix some js

resources/common.js

@@ -311,6 +311,21 @@ function populateCopyButton() {
     });
 }
 
+function register_markdown_editors() {
+    if (!("Markdown" in window)) {
+        return;
+    }
+    $('textarea.wmd-input').each(function() {
+        let id = this.id.substr(9); // remove prefix "wmd-input"
+        var $buttonBar = $(this).prevAll('div[id^="wmd-button-bar"]').first();
+        if (!$buttonBar.length || !$buttonBar.html().trim()) {
+            let converter = new Markdown.Converter();
+            let editor = new Markdown.Editor(converter, id);
+            editor.run();
+        }
+    });
+}
+
 function onWindowReady() {
     // http://stackoverflow.com/a/1060034/1090657
     var hidden = 'hidden';
@@ -391,6 +406,7 @@ function onWindowReady() {
         $("[data-src]iframe").each(function() {
             $(this).attr("src", $(this).attr("data-src"));
         })
+        register_markdown_editors();
     }, "100");
 
     $('form').submit(function (evt) {
@@ -414,6 +430,7 @@ function onWindowReady() {
 
         $("#loading-bar").show();
         $("#loading-bar").animate({ width: "100%" }, 2000, function() {
+            $(this).stop(true, true);
             $(this).hide().css({ width: 0});
         });    
     });

resources/pagedown_math.js

@@ -1,6 +1,5 @@
 function mathjax_pagedown($) {
     $.each(window.editors, function (id, editor) {
-        console.log(id);
         var preview = $('div.wmd-preview#' + id + '_wmd_preview')[0];
         editor.hooks.chain('onPreviewRefresh', function () {
             renderKatex(preview);

templates/three-column-content.html

@@ -75,6 +75,7 @@
           $('html, body').animate({scrollTop: 0}, 'fast');
           $('.middle-right-content').html(reload_content.first().html());
           $('#extra_js').html(bodyend_script.first().html());
+          $("#loading-bar").stop(true, true);
           $("#loading-bar").hide().css({ width: 0});
           if (reload_content.hasClass("wrapper")) {
             $('.middle-right-content').addClass("wrapper");