You can solve that problem by using POST rather than GET for the playback requests. (I.e. convert each playback request link to a <form> with hidden fields spec

You can solve that problem by using POST rather than GET for the playback requests. (I.e. convert each playback request link to a <form> with hidden fields specifying the track info and a "request it" button, or just use ajax and "new XMLHttpRequest('POST')" or whatever is appropriate for the JavaScript library being used.)