title: Dynamic iframes in React web app
body: <p>I asked this as part of a larger question at <a href="https://softwareengineering.stackexchange.com/questions/373520/help-defining-architecture-async-messaging-web-app-as-portal-in-web-page">https://softwareengineering.stackexchange.com/questions/373520/help-defining-architecture-async-messaging-web-app-as-portal-in-web-page</a>.  Though with no responses I thought I'd reduce the complexity of the main part of the question to a pure technical one.</p>
  
  <p>I'd like to have one or more web-apps as 'portal's within an outer web app.  In HTML5 this could be achieved with <code>&lt;iframe</code>.  However the solution I'm desiring is more dynamic than this with the internal web-apps not known ahead of time.</p>
  
  <p>Are there any solutions to this problem?  I'm happy to consider any options though a React one preferred.  Perhaps i'm missing something obvious here.</p>