Hi @jimjmn,
Thanks for your reply, I was tracking the source of the page and I can see that the iframe SRC is Buy tickets for David Mackie.
That link is what is redirecting to a new page. In Google chrome on mac the redirect is blocked, but maybe not for other browsers.
You will need to go to the provider of this link at Buy tickets for David Mackie and get direct links, or you can copy the links to the individual events from the iframe code after the page has been redirected.
In any case, the issue is the link at Buy tickets for David Mackie, you can test it yourself in browser window, it redirects and if you set the iframe to a src which redirects to another url, this is in most cases blocked or is unwanted behavior.
I hope this helps!