| <!DOCTYPE html> | |
| <form> | |
| <input type="image" name="name" value="value"> | |
| </form> | |
| <script> | |
| "use strict"; | |
| if (window.location.search.startsWith("?name.x")) { | |
| // The action pointed to ourself, so the form submitted something | |
| window.parent.success(window.location.href); | |
| } else { | |
| const input = document.querySelector("input"); | |
| input.click(); | |
| } | |
| </script> |