onerror

Summary

Indicates an error has occurred.

Property of apis/appcache/ApplicationCacheapis/appcache/ApplicationCache

Syntax

var result = ApplicationCache.onerror;
ApplicationCache.onerror = value;

Return Value

Returns an object of type nullnull

Notes

This event can be generated by the following errors:

• The manifest referred to a 404 or 410 page, preventing the page from being loaded.
• A page referenced in the manifest failed to download properly.
• A fatal error occurred while downloading the resources listed in the manifest.
• The manifest was changed while the update was being processed.

If there is more than one event, the error event will be the last one in the sequence. Alternatively, you could use an anonymous delegate function such as

object.onerror = function (e) { … }

where e is the cached event.

Related specifications

W3C ApplicationCache Specification

W3C Editor’s Draft

Attributions

• Microsoft Developer Network: Article