| <html> | |
| <head> | |
| <script> | |
| function sendMessage() { alert(getComputedStyle(document.querySelector(".hidden")).display == "none" ? "content blockers enabled" :"content blockers disabled"); } | |
| </script> | |
| </head> | |
| <body onload="sendMessage()"> | |
| <p class="hidden"> | |
| This text exists to determine if content blockers are enabled. | |
| If they're enabled, the computed style of this text will be display:none. | |
| </p> | |
| </body> | |
| </html> |