Attempt to prevent key pass through in wayland. Hopefully also improve web browsing speed.

src/cthulhu/scripts/web/script.py

@@ -1632,6 +1632,17 @@ class Script(default.Script):
             self._inFocusMode = False
             self._setNavigationSuspended(True, "focus left document content")
             debug.printMessage(debug.LEVEL_INFO, msg, True)
+            oldDocument = self.utilities.getTopLevelDocumentForObject(oldFocus)
+            if not oldDocument and self.utilities.isDocument(oldFocus):
+                oldDocument = oldFocus
+
+            if oldFocus and not oldDocument:
+                msg = "WEB: Not refreshing grabs because we weren't in a document before"
+                debug.printMessage(debug.LEVEL_INFO, msg, True)
+                return False
+
+            tokens = ["WEB: Refreshing grabs because we left document", oldDocument]
+            debug.printTokens(debug.LEVEL_INFO, tokens, True)
             self.refreshKeyGrabs()
             return False
 
@@ -2923,7 +2934,6 @@ class Script(default.Script):
         self._lastCommandWasStructNav = False
         self._lastCommandWasMouseButton = False
         self._lastMouseButtonContext = None, -1
-        self.removeKeyGrabs()
         return False
 
     def getTransferableAttributes(self):