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 mozbrowserloadstart
event is fired when the browser <iframe>
starts to load a new page.
This can be used when the embedder wants to start spinning a loading indicator, or update the UI in some other way to indicate loading has started.
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 |
Whether the event normally bubbles or not |
cancelable Read only |
Boolean |
Whether the event is cancellable or not? |
Example
In this example the mozbrowserloadend
and mozbrowserloadstart
events are used to change the icon shown on the stop/reload button between stop (x) and reload (R), as appropriate.
var browser = document.querySelector("iframe"); browser.addEventListener('mozbrowserloadstart',function() { stopReload.textContent = 'x'; }); browser.addEventListener('mozbrowserloadend',function() { stopReload.textContent = 'R'; });
Related Events
mozbrowserasyncscroll
mozbrowserclose
mozbrowsercontextmenu
mozbrowsererror
mozbrowsericonchange
mozbrowserloadend
mozbrowserlocationchange
mozbrowseropenwindow
mozbrowsersecuritychange
mozbrowsershowmodalprompt
mozbrowsertitlechange
mozbrowserusernameandpasswordrequired