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Non-standard
This feature is not on a current W3C standards track, but it is supported on the Firefox OS platform. Although implementations may change in the future and it is not supported widely across browsers, it is suitable for use in code dedicated to Firefox OS apps.
The mozbrowsermetachange
event is fired when a <meta>
element related to web applications is added, removed or changed.
See below for the applicable types.
General info
- Specification
- Non standard
- Interface
CustomEvent
- Bubbles
- Yes
- Cancelable
- Yes
- Target
<iframe>
- Default Action
- None
Properties
Property | Type | Description |
---|---|---|
target Read only |
EventTarget |
The browser iframe |
type Read only |
DOMString |
The type of event. |
bubbles Read only |
boolean |
Does the event normally bubble? |
cancelable Read only |
boolean |
Is it possible to cancel the event? |
details Read only |
object |
A custom object |
details
The details
property returns an anonymous JavaScript object with the following properties:
- name
- A
DOMString
representing the<meta>
name
attribute value. This can beviewmode
,theme-color
,theme-group
, orapplication-name
. - content
- A
DOMString
representing the<meta>
content
attribute value, i.e. the content of the meta tag. - type
- A
DOMString
representing the type of meta change that this event object represents. This can beadded
,changed
,removed
, orundefined
. - lang Optional
- A
DOMString
representing the<meta>
name
attribute value, if included. If not included, the value returned isundefined
.
Example
var browser = document.querySelector("iframe"); browser.addEventListener("mozbrowsermetachange", function(event) { console.log("A meta tag has been " + event.details.type + ". Its name is " + event.details.name + ", and its content is " + event.details.content + "."); });
Related Events
mozbrowserasyncscroll
mozbrowsercontextmenu
mozbrowsererror
mozbrowsericonchange
mozbrowserloadend
mozbrowserloadstart
mozbrowserlocationchange
mozbrowseropenwindow
mozbrowsersecuritychange
mozbrowsershowmodalprompt
mozbrowsertitlechange
mozbrowserusernameandpasswordrequired