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Fix #1896844 [Private bug](https://bugs.launchpad.net/calibre/+bug/1896844)

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Kovid Goyal 2020-09-24 07:42:21 +05:30
parent 103659f267
commit 4d5b25bf0e
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3
src/pyj/iframe_comm.pyj
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@ -206,6 +206,9 @@ def handle_message(self, event):
print('Could not process message from parent:')
console.log(e)
return
if not data or not data.action:
console.log('Got a null message from parent in iframe, ignoring')
return
func = self.handlers[data.action]
if func:
try: