title: Alpha Vantage - Getting data for symbols containing space
body: <p>I'm trying to get data (TIME_SERIES_DAILY) from the Nasdaq OMX exchange but fails on symbols containing a space. 
  For example: 
  <code>STO:ABB</code> works fine but <code>STO:ADDT B</code> does not. I've tried several combinations like <code>"STO:ADDT B"</code>, <code>STO:"ADDT B"</code>, <code>STO:ADDTB</code> or even <code>STO:ADDT_B</code> without luck. </p>
  
  <p>Anyone solved this and knows how to correctly "encode" the symbol containing a space?</p>