Having this issue as of Feb 8, 2019. We have a document that has a link to a Marketo landing page with a form on it. When you click the link it drives you to the page but the browser (and we tested in multiple) still sees it as part of the iFrame and blocks the form submission.
Having this issue as of Feb 8, 2019. We have a document that has a link to a Marketo landing page with a form on it. When you click the link it drives you to the page but the browser (and we tested in multiple) still sees it as part of the iFrame and blocks the form submission.