title: Camunda Spring Boot starter with embedded forms
body: <p>I am trying to use embedded forms with a start event with the Camunda spring boot starter. </p>
  
  <p>My startEvent is described like this:</p>
  
  <pre><code>&lt;bpmn:startEvent id="StartEvent_1" name="Rechnungseingang" camunda:formKey="embedded:app:forms/rechnungseingang.html"&gt;
    &lt;bpmn:outgoing&gt;SequenceFlow_0dtfc1a&lt;/bpmn:outgoing&gt;
  &lt;/bpmn:startEvent&gt;
  </code></pre>
  
  <p>The form itself is located under "src/main/webapp/forms/rechnungseingang.html", from my understanding this should be the correct path.</p>
  
  <p>If I try to start the process after starting the spring boot app, I am receiving the error: "Form failure: The context path is either empty or not defined."</p>
  
  <p>In the browser console, I can see a request to <a href="http://localhost:8080/test/api/engine/engine/default/process-definition/Rechnungseingang:1:927f0aa4-e590-11e7-973d-e2cbd8678b9f/startForm" rel="noreferrer">http://localhost:8080/test/api/engine/engine/default/process-definition/Rechnungseingang:1:927f0aa4-e590-11e7-973d-e2cbd8678b9f/startForm</a> with the response:</p>
  
  <pre><code>{"key":"embedded:app:forms/rechnungseingang.html","contextPath":null}
  </code></pre>
  
  <p>Obviously the application can't handle the null value in the contextPath. How am I able to set the contextPath for Camunda in Spring Boot? In the application.properties I already tried to set <code>server.context-path</code> with no effect.</p>