Python Issue: RuntimeError: dictionary changed size during iteration

[icanhazlogs]

Trying to setup Website Monitoring on Splunk 8 and after adding an input I get the following error each time it runs.

Traceback (most recent call last):   File "/opt/splunk/etc/apps/website_monitoring/bin/modular_input.zip/modular_input/modular_input_base_class.py", line 1092, in execute
    self.do_run(in_stream, log_exception_and_continue=True)   File "/opt/splunk/etc/apps/website_monitoring/bin/modular_input.zip/modular_input/modular_input_base_class.py", line 973, in do_run
    self.run(stanza, cleaned_params, input_config)   File "/opt/splunk/etc/apps/website_monitoring/bin/web_ping.py", line 884, in run
    for thread_stanza in self.threads.keys(): RuntimeError: dictionary changed size during iteration

Is there a fix for this, or am I missing some part of the setup? Not using a proxy and I have set "*" in the ignore field.

[LukeMurphey]

This looks like a bug to me. I opened a bug report and will look into fixing it soon: https://lukemurphey.net/issues/2587

My plan is to release a fix in a maintenance release.

Update:
I have released a fix. The fix is in version 2.9. It is available from Splunkbase here: https://splunkbase.splunk.com/app/1493/