webenginetab: Move QtWebEngine specific workaround

See #8711

qutebrowser/browser/browsertab.py

@@ -1177,37 +1177,6 @@ class AbstractTab(QWidget):
                                   navigation.url.errorString()))
             navigation.accepted = False
 
-        # WORKAROUND for QtWebEngine >= 6.2 not allowing form requests from
-        # qute:// to outside domains.
-        needs_load_workarounds = (
-            objects.backend == usertypes.Backend.QtWebEngine and
-            version.qtwebengine_versions().webengine >= utils.VersionNumber(6, 2)
-        )
-        if (
-            needs_load_workarounds and
-            self.url() == QUrl("qute://start/") and
-            navigation.navigation_type == navigation.Type.form_submitted and
-            navigation.url.matches(
-                QUrl(config.val.url.searchengines['DEFAULT']),
-                urlutils.FormatOption.REMOVE_QUERY)
-        ):
-            log.webview.debug(
-                "Working around qute://start loading issue for "
-                f"{navigation.url.toDisplayString()}")
-            navigation.accepted = False
-            self.load_url(navigation.url)
-
-        if (
-            needs_load_workarounds and
-            self.url() == QUrl("qute://bookmarks/") and
-            navigation.navigation_type == navigation.Type.back_forward
-        ):
-            log.webview.debug(
-                "Working around qute://bookmarks loading issue for "
-                f"{navigation.url.toDisplayString()}")
-            navigation.accepted = False
-            self.load_url(navigation.url)
-
     @pyqtSlot(bool)
     def _on_load_finished(self, ok: bool) -> None:
         assert self._widget is not None

qutebrowser/browser/webengine/webenginetab.py

@@ -1639,6 +1639,37 @@ class WebEngineTab(browsertab.AbstractTab):
             navigation.accepted = False
             self.load_url(navigation.url)
 
+        # WORKAROUND for QtWebEngine >= 6.2 not allowing form requests from
+        # qute:// to outside domains.
+        needs_load_workarounds = (
+            objects.backend == usertypes.Backend.QtWebEngine and
+            version.qtwebengine_versions().webengine >= utils.VersionNumber(6, 2)
+        )
+        if (
+            needs_load_workarounds and
+            self.url() == QUrl("qute://start/") and
+            navigation.navigation_type == navigation.Type.form_submitted and
+            navigation.url.matches(
+                QUrl(config.val.url.searchengines['DEFAULT']),
+                urlutils.FormatOption.REMOVE_QUERY)
+        ):
+            log.webview.debug(
+                "Working around qute://start loading issue for "
+                f"{navigation.url.toDisplayString()}")
+            navigation.accepted = False
+            self.load_url(navigation.url)
+
+        if (
+            needs_load_workarounds and
+            self.url() == QUrl("qute://bookmarks/") and
+            navigation.navigation_type == navigation.Type.back_forward
+        ):
+            log.webview.debug(
+                "Working around qute://bookmarks loading issue for "
+                f"{navigation.url.toDisplayString()}")
+            navigation.accepted = False
+            self.load_url(navigation.url)
+
         if not navigation.accepted or not navigation.is_main_frame:
             return