$sceDelegate
is a service that is used by the $sce
service to provide Strict Contextual Escaping (SCE) services to AngularJS.
Typically, you would configure or override the $sceDelegate instead of the $sce
service to customize the way Strict Contextual Escaping works in AngularJS. This is because, while the $sce
provides numerous shorthand methods, etc., you really only need to override 3 core functions (trustAs
, getTrusted
and valueOf
) to replace the way things work because $sce
delegates to $sceDelegate
for these operations.
Refer $sceDelegateProvider to configure this service.
The default instance of $sceDelegate
should work out of the box with little pain. While you can override it completely to change the behavior of $sce
, the common case would involve configuring the $sceDelegateProvider instead by setting your own whitelists and blacklists for trusting URLs used for loading AngularJS resources such as templates. Refer $sceDelegateProvider.resourceUrlWhitelist and $sceDelegateProvider.resourceUrlBlacklist
$sceDelegate();
Returns an object that is trusted by angular for use in specified strict contextual escaping contexts (such as ng-bind-html, ng-include, any src attribute interpolation, any dom event binding attribute interpolation such as for onclick, etc.) that uses the provided value. See $sce for enabling strict contextual escaping.
Param | Type | Details |
---|---|---|
type | string | The kind of context in which this value is safe for use. e.g. url, resourceUrl, html, js and css. |
value | * | The value that that should be considered trusted/safe. |
* |
A value that can be used to stand in for the provided |
If the passed parameter had been returned by a prior call to $sceDelegate.trustAs
, returns the value that had been passed to $sceDelegate.trustAs
.
If the passed parameter is not a value that had been returned by $sceDelegate.trustAs
, returns it as-is.
Param | Type | Details |
---|---|---|
value | * | The result of a prior |
* |
The |
Takes the result of a $sceDelegate.trustAs
call and returns the originally supplied value if the queried context type is a supertype of the created type. If this condition isn't satisfied, throws an exception.
Param | Type | Details |
---|---|---|
type | string | The kind of context in which this value is to be used. |
maybeTrusted | * | The result of a prior |
* |
The value the was originally provided to |
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Licensed under the Creative Commons Attribution License 4.0.
https://code.angularjs.org/1.5.11/docs/api/ng/service/$sceDelegate