| <!doctype html> |
| <script> |
| let current = new URL(window.location.href); |
| let navigateTo = current.searchParams.get("to"); |
| let channelName = current.searchParams.get("channelName"); |
| current.search = ""; |
| if (navigateTo) { |
| let next = new URL(navigateTo, current); |
| window.addEventListener("load", () => { |
| window.location.href = next.href; |
| }); |
| } |
| |
| if (channelName) { |
| let bc = new BroadcastChannel(channelName); |
| bc.postMessage("loaded"); |
| |
| // The page can also be restored from the back-forward cache: |
| window.addEventListener('pageshow', function(event) { |
| if (event.persisted) |
| bc.postMessage("loaded"); |
| }); |
| } |
| </script> |
