Currently the embed.ly service does not support passing additional non oembed spec parameters to an external service.

For example, vimeo only supports the maxwidth/maxheight paramaters providing the requested size is not greater than the original size of the video. However, they do allow passing a width/height parameter which will allow the video to be scaled up in size if necessary.

The proposal would be to forward any additional querystring parameters to the external service. We should be able to pass these via the embed.ly jquery plugin, in the same way we can with the jquery oembed plugin.

Example url: http://api.embed.ly/1/oembed?url=http://vimeo.com/13183074&width=700&format=xml