This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work 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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