Debug Safari testing

Author: mcbarton

.github/actions/Emscripten-Notebook-Tests/action.yml

@@ -37,6 +37,10 @@ runs:
         touch safari_diff.txt
         if [[ "${{ matrix.os }}" == "macos"* ]]; then
           echo "Running xeus-cpp in Jupter Lite in  Safari"
+          # Kill any stale Safari/safaridriver processes
+          pkill -9 Safari 2>/dev/null || true
+          pkill -9 safaridriver 2>/dev/null || true
+          sleep 3
           python -u scripts/automated-notebook-run-script.py --driver safari --notebook ${{ inputs.notebook }} --kernel ${{ inputs.kernel }} $INPUT_TEXT
           nbdiff notebooks/${{ inputs.notebook }} $HOME/Downloads/${{ inputs.notebook }} --ignore-id --ignore-metadata >> safari_diff.txt
           export SAFARI_TESTS_RETURN_VALUE=$( [ -s safari_diff.txt ] && echo 1 || echo 0 )