<object>
or <embed>
elements:x-shockwave-flash
or x-test
then the behavior is unchanged. This means that non-plugin types behave as expected and unknown types are displayed at a size of 0 x 0.<object>
element has an HTML fallback in the DOM then the fallback is shown as expected.x-shockwave-flash
or x-test
types, the element is shown as a transparent region with the size specified in its width
and height
attributes.