Iframe code html4/11/2024 ![]() Bypassing this security feature can be important if the provider of the iframe needs additional form entries so that the content in the iframe can be used at all, such as an age verification. This was originally impossible because browsers are based on “same-origin policy” and thus prevent embedded elements (originating from other servers) from manipulating the contents of the website you are viewing. That way the programmer can influence whether the iframe may modify content of the website in which it is embedded. Sandboxing: iframes which are embedded with HTML5 can be provided with appropriate sandbox attributes. ![]() Javascript will have to be used additionally if this size is to be transferred to the full-screen view. The iframe retains the size specified in the code. In this case, only the video will be enlarged to the full-screen view during playback. This technique is already provided by the video sharing website YouTube when users retrieve the embedding code. For example, if a video is included through iframe, it can be fit to the full screen size.
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