[orca] Gracefully fail when document frame cannot be found during page summary

[Joanmarie Diggs <joanied src gnome org>]

commit 1871a0de02644e7357e96c1ef811222400a3c29b
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Mon Oct 15 16:59:52 2018 +0200

    Gracefully fail when document frame cannot be found during page summary

 src/orca/scripts/web/script_utilities.py | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/src/orca/scripts/web/script_utilities.py b/src/orca/scripts/web/script_utilities.py
index d66f6f944..fb2170c78 100644
--- a/src/orca/scripts/web/script_utilities.py
+++ b/src/orca/scripts/web/script_utilities.py
@@ -3777,6 +3777,10 @@ class Utilities(script_utilities.Utilities):
                   'unvisitedLinks': 0}
 
         docframe = self.documentFrame(obj)
+        msg = "WEB: Could not get document frame for %s" % obj
+        debug.println(debug.LEVEL_INFO, msg, True)
+        return result
+
         col = docframe.queryCollection()
         stateset = pyatspi.StateSet()
         roles = [pyatspi.ROLE_HEADING,