What browsers support the allowfullscreen attribute in iframes?

Answers:

• The allowfullscreen attribute for <iframe> elements is widely supported across modern web browsers. Here’s a breakdown of the support:

  1. Chrome: Supported
  2. Firefox: Supported
  3. Safari: Supported
  4. Edge: Supported
  5. Opera: Supported
  6. Internet Explorer: Although Internet Explorer itself does not support the allowfullscreen attribute, it can work in certain scenarios with the correct configuration in later versions, but it’s generally not recommended to rely on IE for modern web development.

  In terms of mobile browsers, the major mobile versions (Chrome, Safari, and Firefox on mobile devices) also support the allowfullscreen attribute as long as the feature is implemented correctly.

  To ensure that the fullscreen functionality works as expected, the iframe's content must also support being displayed in fullscreen mode. The allow attribute can also be used in conjunction with allowfullscreen to specify permissions more granularly (for example, allow="fullscreen").

  It's always good to test on the specific versions of the browsers you expect your audience to use to ensure compatibility.

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