Get additional parameters via JS API in HTML5 player

Community Forums API and App Developers Support
1

I tried to add some “Additional parameters” to the player they are passing fine to the flash plugin version, but I can’t get it in the HTML5 version of plugin. Only variables I see is

IframeCustomPluginCss1
IframeCustomPluginJs1

I am trying to get it using this code:

k_api.getFlashvars()

So my question is how can I get those properties or how can I pass something to my JS plugin