Tests setting breakpoint when main thread blocks.


Running: testSetBreakpoint
blocking-main-thread-worker.php:line 9:   Atomics.store(sharedArray, i, 1);
Page reloaded.
Script execution paused.
blocking-main-thread-worker.php:line 9:   Atomics.store(sharedArray, i, 1);
blocking-main-thread.php:line 6:   worker.postMessage(sab);
Script execution resumed.