diff --git a/brozzler/browser.py b/brozzler/browser.py
index 288d64b..d31663a 100644
--- a/brozzler/browser.py
+++ b/brozzler/browser.py
@@ -553,6 +553,7 @@ class Browser:
                         timeout=5)
                 msg = self.websock_thread.pop_result(msg_id)
                 if (msg and 'result' in msg
+                        and not ('exceptionDetails' in msg['result'])
                         and not ('wasThrown' in msg['result']
                             and msg['result']['wasThrown'])
                         and 'result' in msg['result']
diff --git a/setup.py b/setup.py
index f3cf5fb..7c6720d 100644
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@ def find_package_data(package):
 
 setuptools.setup(
         name='brozzler',
-        version='1.1b9.dev167',
+        version='1.1b9.dev168',
         description='Distributed web crawling with browsers',
         url='https://github.com/internetarchive/brozzler',
         author='Noah Levitt',