frames

Hello everyone! Building frames is exciting but I have a problem. I need to use state now. I tried adding    <meta property="fc:frame:state" content="{`a`: `b`}"> . It shows up in frames.js, as a valid tag, but I don't see it in the request, untrusted data doesn't contain the state

untrustedData: {
    fid: 1,
    url: 'http://localhost:4000/warpcast',
    messageHash: '0x62d5e257bdc828a4f7e54efe4809f5b3ca193d34',
    timestamp: 101073913,
    network: 1,
    buttonIndex: 3,
    castId: { fid: 1, hash: '0x0000000000000000000000000000000000000000' }
  },