Can Tableau Reader read workbooks that access their data via a link to a web-exposed server

Question

Can Tableau Reader read Tableau workbooks that use a connection to a web-exposed server to get data? I'm attempting to figure out if I can store data on a web-accessible database server, create workbooks for folks who use Desktop Professional with that data, and then transmit the workbooks to clients who use Tableau Reader. I realise that those customers will only be able to see the premade reports I've included in the workbooks, but will they be able to see the data on the server as well, or does Reader require the data to be included in the workbook?