><span class='id identifier rubyid_fallback_host'>fallback_host</span>
  <span class='id identifier rubyid_host'>host</span><span class='period'>.</span><span class='id identifier rubyid_merge'>merge</span><span class='lparen'>(</span><span class='id identifier rubyid_path'>path</span><span class='rparen'>)</span>
<span class='kw'>rescue</span> <span class='const'>ArgumentError</span> <span class='op'>=&gt;</span> <span class='id identifier rubyid_ex'>ex</span>
  <span class='id identifier rubyid_request_co