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
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 HTML Living Standard
First snapshot with this property.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support No No27 No No No
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support No No No27 No No ?

See also

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

Document Tags and Contributors

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