Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
The Document.mozSyntheticDocument
property indicates whether or not the document is a synthetic one; that is, a document representing a standalone image, video, audio, or the like.
Syntax
var isSynthetic = document.mozSyntheticDocument;
On return, isSynthetic
is true
if the document is a synthetic one; otherwise it's false
.
Example
This can be useful if you have a contextual menu item you only want to display for synthetic documents (or, conversely, for documents that aren't synthetic).
var isSynthetic = document.mozSyntheticDocument; if (isSynthetic) { /* insert your menu item here */ }
Specifications
Not part of any specification.
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
mozSyntheticDocument | Chrome No support No | Edge No support No | Firefox No support No | IE No support No | Opera No support No | Safari No support No | WebView Android No support No | Chrome Android No support No | Firefox Android No support No | Opera Android No support No | Safari iOS No support No | Samsung Internet Android No support No |
Legend
- No support
- No support
- Non-standard. Expect poor cross-browser support.
- Non-standard. Expect poor cross-browser support.