WeakMap Test



  1. Ensure you are running the latest release of Chrome Canary
  2. Enable Javascript experimental features by navigating to chrome://flags
  3. Open dev tools, go to the timeline and click "memory"


  1. Click the test type under the "Test" heading above
  2. Refresh the page
  3. Click the record (circle button) at the top of the devtools window
  4. Wait until dev tools shows 1 minute or so of recording on the timeline
  5. Stop the recording