11cb0ef41Sopenharmony_ci<!doctype html> 21cb0ef41Sopenharmony_ci<script> 31cb0ef41Sopenharmony_ciself.addEventListener('message', e => { 41cb0ef41Sopenharmony_ci URL.revokeObjectURL(e.data.url); 51cb0ef41Sopenharmony_ci e.source.postMessage('revoked', '*'); 61cb0ef41Sopenharmony_ci}); 71cb0ef41Sopenharmony_ci</script>