title: Youtube api video search Request contains an invalid argument
body: <p>I am trying to search youtube videos as per here: <a href="https://developers.google.com/youtube/v3/docs/search/list" rel="nofollow noreferrer">https://developers.google.com/youtube/v3/docs/search/list</a></p>
  <p>This is my request:</p>
  <p><a href="https://www.googleapis.com/youtube/v3/search?part=id,snippet&amp;type=video&amp;videoEmbeddable=true&amp;channelId=UUUhFaUpnq31m6TNX2VKVSVA&amp;maxResults=6&amp;order=relevance&amp;q=bmw&amp;key=API_KEY" rel="nofollow noreferrer">https://www.googleapis.com/youtube/v3/search?part=id,snippet&amp;type=video&amp;videoEmbeddable=true&amp;channelId=UUUhFaUpnq31m6TNX2VKVSVA&amp;maxResults=6&amp;order=relevance&amp;q=bmw&amp;key=API_KEY</a></p>
  <p>I am getting &quot;Request contains an invalid argument.&quot;</p>
  <p>It works if I remove channelId but this parameter is supported as per docs. I need to have this parameter because I want to narrow down search in channel.</p>
  <p>Btw, this request works in their API panel and returns results:</p>
  <p>curl <br />
  'https://youtube.googleapis.com/youtube/v3/search?part=id&amp;part=snippet&amp;channelId=UCUhFaUpnq31m6TNX2VKVSVA&amp;maxResults=6&amp;order=relevance&amp;q=bmw&amp;type=video&amp;videoEmbeddable=true&amp;key=[YOUR_API_KEY]' <br />
  --header 'Authorization: Bearer [YOUR_ACCESS_TOKEN]' <br />
  --header 'Accept: application/json' <br />
  --compressed</p>