This feature has been removed from the Web. Though some browsers may still support it, it is in the process of being dropped. Do not use it in old or new projects. Pages or Web apps using it may break at any time.

Set the runtime-wide object-principals-finder callback. This function is deprecated. In SpiderMonkey 1.8.1 or later, use JS_SetRuntimeSecurityCallbacks instead.


JSObjectPrincipalsFinder JS_SetObjectPrincipalsFinder(JSRuntime *rt,
                                                      JSObjectPrincipalsFinder fop);
Name Type Description
rt JSRuntime * The runtime to configure.
fop JSObjectPrincipalsFinder  The new object-principals-finder callback.


JS_SetObjectPrincipalsFinder allows the application to set a callback that the JavaScript engine uses to obtain an object's principals. This callback is described in JSObjectPrincipalsFinder.

JS_SetObjectPrincipalsFinder returns the previous object-principals-finder callback.

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 Contributors to this page: fscholz, Jorend, Jimb
 Last updated by: fscholz,