Remove PROMOTIONAL_CLOSE_PAGE and other option

Hi everyone,
I want to remove some things (promotional-page, watermark link, etc … without removing the jitsi logo) using the API of meet.jit.si. I tried to set some information like this:
interfaceConfigOverwrite: {
SHOW_POWERED_BY: false,
SHOW_PROMOTIONAL_CLOSE_PAGE: false,
MOBILE_APP_PROMO: false
}
but it does not work.
Any suggestions on this?