Check check for null values for host and cluster

[maskeynihal]

Description

If the configuration is set as follows

$options = [
  'host' => null, 
  'cluster' => null
]

Then, array_key_exists will only check if the key exists or not and will not check if the value is empty. If the keys exist and the value is null, then the URL generated will be null when host is null or api-.pusher.com when cluster is null.

This causes an error in calling the URL of the pusher.

CHANGELOG

• [ADDED] Check if the value of host and cluster in the options provided is null or not. If the keys exist on the options but the value is null, it falls back to the default value.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. If you'd like this issue to stay open please leave a comment indicating how this issue is affecting you. Thank you.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. If you'd like this issue to stay open please leave a comment indicating how this issue is affecting you. Thank you.