title: How to access Azure B2C openId protected API by multiple client Application
body: <p>I secure my nodeJs API with Azure B2C. I have two web application which accesses my API. </p>
  
  <p>the two Web application has its own application Id in Azure B2C. Also, those can generate access_token with B2C. </p>
  
  <p>But when I validate those access_token in my API I have to put application id of the web application witch generate the access_token as an <strong>audience</strong>.</p>
  
  <p>But the audience does not support array. I can only put one application id. </p>
  
  <p>How do I solve this? </p>
  
  <p>If I secure an API with B2C I only can make requests from one web application?</p>