IFrame has loaded, we pass MessageChannel.port2 to the IFrame using Making statements based on opinion; back them up with references or personal experience. iframe 1999 2023 Viget Labs, LLC. For instance, if your iframe only needs to submit forms and to open new modal windows, here is how you will configure the sandbox attribute: For a situation when the sandbox attribute is configured, and one feature is not working correctly within the resource, it might be because it lacks a specific flag. For bidirectional communication we will use two native JavaScript functionalities: Lets have a closer look at both of them. Some will say that this attribute is not essential since most screen readers will only read the documents title when available and skip the title attribute on the iframe tag. I wrote a set of pages a while ago. Would you ever say "eat pig" instead of "eat pork"? It is quite easy to send messages between the parent and the iframe. Where should I put