After updating to OS X 10.10.2, I can no longer use Quick Look on HTML files – I just get a blank preview window, and the issue persists through a reboot. But all other files types work fine.

Is there a cache I can clear or something else I can try to get this working again?

  • I have the same problem and reported it to Apple as a bug.
    – user113858
    Feb 16, 2015 at 2:11
  • This is also affecting SVG files, since they use the same webkit renderer as html files. Mar 8, 2015 at 1:14

2 Answers 2


Known bug on Apple's Bug Radar as Bug # 19639311

10.10.2 quick look broken for HTML files

qlmanage -t <path_to_html_file> produces a small thumbnail of the HMTL file
qlmanage -p <path_to_html_file> just gives me a blank quicklook preview

This doesn't happen with a .jpg file I used as a control sample.

  • I submitted a bug report a few days ago and they just closed it as a duplicate of the same issue. Hopefully there's enough duplicates that they'll fix it in the next release.
    – daGUY
    Feb 24, 2015 at 13:41

You can clear the quicklook cache by entering this in terminal:

  • qlmanage -r
  • qlmanage -r cache

I have the same problem after updating, but clearing cache doesn't seem to help.

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