For version 3.0.4, API method not working for "getPageUrl" and few more.

Getting following error:
{
"result": "error",
"message": "The method 'getPageUrl' does not exist or is not available in the module '\Piwik\Plugins\API\API'."
}

Some API methods work, some don't.

Facing same problem with demo API call. Here is my API call:

http://demo.piwik.org/?module=API&method=API.getSiteSearchCategories &idSite=3&period=day&date=yesterday&format=json&token_auth=anonymous

http://demo.piwik.org/?module=API&method=API.getPageUrl&pageUrl=demo.piwik.org&idSite=3&period=day&date=yesterday&format=json&token_auth=anonymous

Is there anything wrong in API call?

Please help.

Thank you.