title: How to enable Safari ITP Debug mode
body: <p>I'd like to force Safari to mark one of my domains as tracker with new ITP 2.0.
  I followed the guide here <a href="https://webkit.org/blog/8387/itp-debug-mode-in-safari-technology-preview-62/" rel="nofollow noreferrer">https://webkit.org/blog/8387/itp-debug-mode-in-safari-technology-preview-62/</a></p>
  
  <p>Since the new Technology Preview version (66) doesn't have ITP Debug mode I've used normal Safari 12.0 on macOS Mojave. After enabling ITP Debug mode and restaring Safari I don't see anything in logs as the guide suggest nor does setting </p>
  
  <pre><code>defaults write com.apple.SafariTechnologyPreview ResourceLoadStatisticsManualPrevalentResource example.com
  </code></pre>
  
  <p>have any effect (even with Safari instead of SafariTechnologyPreview). Do I need to change any other Safari or OS settings?</p>