Do not consider edit mode as a history entry

2026-07-20 17:31:59 +02:00
parent 34f750beff
commit 28d22c040f
6 changed files with 93 additions and 2 deletions
@@ -0,0 +1,33 @@
+// Keeps the page editor out of the browser history.
+//
+// Opening the editor for the page you are already on is a mode switch, not a
+// new destination, so it replaces the current history entry instead of pushing
+// one; CANCEL replaces it right back, and SAVE does the same via postSave in
+// editor/main.js. Without this, page -> edit -> save leaves
+// [prev, page, editor, page'] behind and Back walks through the editor and a
+// stale pre-save snapshot of the page before reaching prev.
+//
+// Links to a *different* page's editor (new page, new child) still push — the
+// page you started from has to stay in history.
+(function () {
+    function isEdit(loc) {
+        return new URLSearchParams(loc.search).has('edit');
+    }
+
+    document.addEventListener('click', function (e) {
+        if (e.defaultPrevented || e.button !== 0) return;
+        if (e.metaKey || e.ctrlKey || e.shiftKey || e.altKey) return;
+        var a = e.target.closest ? e.target.closest('a[href]') : null;
+        if (!a || a.target || a.hasAttribute('download')) return;
+
+        var url = new URL(a.href, window.location.href);
+        if (url.origin !== window.location.origin) return;
+        if (url.pathname !== window.location.pathname) return;
+        // Same page: only editor entry/exit is a mode switch. Plain anchor
+        // links share the pathname too and must keep their normal behaviour.
+        if (!isEdit(url) && !isEdit(window.location)) return;
+
+        e.preventDefault();
+        window.location.replace(url.href);
+    });
+}());