Use the Embed API to learn what your audience is viewing, sharing and interacting with online. Give your users the content they are looking for. So why the querySelector is null when readyState is complete? (see the reproducible example in JSFiddle, does not work in snippet) const srcdoc = `Ĭonst iframe = document. The Embed API provides you with a tool to grow by adding media to your site. An easier way is to perform a Right Click near the. If playback doesnt begin shortly, try restarting your device. In addition, I have no script, no image, no stylesheet. We can detect if an element is inside an iframe by inspecting the element with the Chrome Developer Tools. So I make the assumption that when it is complete, it has been done and the element should be in the document. Indeed, the document has finished loading and parsed when readyState is interactive. However, what I was wondering is why at first glance, the element that I tried to get is null whereas the readyState is complete. The respective element should be available on the screen for the testing to be successful. Follow Us on Facebook Follow Us on Twitter Follow Us on Instagram.
Hence, I just add an eventListener load on the iframe and it works like a charme. Users can now test and validate the selectors of UI elements through the selectors screen, to make sure the specified selector is valid and functional, without having to run the flow. To make it works, I have to wait the iframe to be loaded. Nothing difficult, I just add a querySelector like this ('#test'). I want to get an element inside the iframe. The context that embeds the iframe is referred to as the parent browsing context.