The HTMLObjectElement.typeMustMatch property is a Boolean reflects the typemustmatch attribute of the <object> element and indicates if the resouce linked by it must match the MIME type given by HTMLObjectElement.type in order for this resource to be used.


var mustMatch = obj.typeMustMatch;
obj.typeMustMatch = mustMatch;


<object id="obj" data="move.swf" type="application/x-shockwave-flash" typemustmatch></object>
var obj = document.getElementById("obj");


Specification Status Comment
WHATWG HTML Living Standard
The definition of 'HTMLObjectElement' in that specification.
Living Standard No change from HTML5, the latest snaspshot of the WHATWG specification.
The definition of 'HTMLObjectElement' in that specification.
Recommendation The W3C specification is a latest of a previous version of WHATWG HTML Living Standard
First snapshot with this property.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support ? 27 (27) ? ? ?
Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support ? 27.0 (27) ? ? ?

See also

  • The HTML element implementing this interface and this property: <object>.

Document Tags and Contributors

 Contributors to this page: fscholz, teoli
 Last updated by: fscholz,