Uncaught TypeError: Cannot read property 'length' of undefined, Line 16: preview_textarea.publish.js

[fawx]

this may be related to using jonas's markdown editor, but $(this).parent().find("textarea") does not find a textarea. changing this line to $(this).closest("div").find("textarea") solves the issue, but may not be relevant to other extensions which modify the textarea.

[tachyondecay]

Good catch. Looks like Markdown Editor moves the textarea element outside the label container, so the textarea and the preview link no longer share the same parent.

I changed it to $(this).closest('div.field').find('textarea'), which hopefully future-proofs it against any extensions that wrap the label or textarea in extra divs. Also, thanks for the recommendation—I haven’t seen .closest() before!