only render preview if preview container is visible

2017-05-24 17:25:33 +02:00
parent 617e027f12
commit 3803f6a20f
1 changed files with 1 additions and 0 deletions
--- a/www/code/main.js
+++ b/www/code/main.js
@@ -112,6 +112,7 @@ define([

            var drawPreview = Cryptpad.throttle(function () {
                if (CodeMirror.highlightMode !== 'markdown') { return; }
+                if (!$previewContainer.is(':visible')) { return; }
                try {
                    DiffMd.apply(DiffMd.render(editor.getValue()), $preview);
                } catch (e) { console.error(e); }