text: Title: Chrome blocking data uri
  Body: I'm running Chrome 60 and cannot click to open any of the Links (Browser Log, Server Log, etc.) in my self-contained pytest-html report. This seems to be due to Chrome blocking top frame navigation to data urls.  See [here](https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/GbVcuwg_QjM) for their developer discussion on this. The console error is ```Not allowed to navigate top frame to data URL:``` Workaround is to use firefox, or right click to open the URL in a new tab.