I opened the web page on a Windows machine / Chrome browser and it showed closed captions correctly. Ensure you select the [cc] button to show text.
So I'd suggest just following this example and testing that it works. If it does not then something clearly is not right somewhere. You could try enabling
the following debug properties and checking the [install-path]/logs/wowzastreamingengine_access.log to see if anything is being reported. If that doesn't help then consider raising it as a ticket via
our standard support process. Please also include a link to this forum thread if so.