The seamless attribute makes an iframe's contents actually part of a page, and adopts the styles from its hosting page. The attribute has been removed from both the WHATWG and the W3C HTML5 specifications. The consistent trait is a boolean property. Whenever present, it determines that the
Method of indicating a progress state.
HTML5 seamless attribute for iframes
Chrome browser version 4 to 70 doesn't supports HTML5 seamless attribute for iframes
.
Mozilla Firefox browser version 2 to 70 doesn't supports HTML5 seamless attribute for iframes
.
Internet Explorer browser version 6 to 11 doesn't supports HTML5 seamless attribute for iframes
property.
Safari browser version 3.1 and 12 doesn't supports supports HTML5 seamless attribute for iframes
.
Microsoft Edge browser version 12 to 18 doesn't supports HTML5 seamless attribute for iframes
property.
Opera browser version 10.1 to 53 doesn't supports HTML5 seamless attribute for iframes
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