To run Safari on macOS, some manual setup is required. Some steps are different for Safari and Safari Technology Preview.

  • Allow Safari to be controlled by SafariDriver:
    • safaridriver --enable or
    • "/Applications/Safari Technology" --enable
  • Allow pop-up windows:
    • defaults write WebKitJavaScriptCanOpenWindowsAutomatically 1 or
    • defaults write WebKitJavaScriptCanOpenWindowsAutomatically 1
  • Turn on additional experimental features Safari Technology Preview:
    • defaults write ExperimentalServerTimingEnabled 1
  • Trust the certificate:
    • security add-trusted-cert -k "$(security default-keychain | cut -d\" -f2)" tools/certs/cacert.pem
  • Set no_proxy='*' in your environment. This is a workaround for a known macOS High Sierra issue.

Now, run the tests using the safari product:

./wpt run safari [test_list]

This will use the safaridriver found on the path, which will be stable Safari. To run Safari Technology Preview instead, use the --channel=preview argument:

./wpt run --channel=preview safari [test_list]