title: Oracle APEX JSON.WRITER.NOT_OPEN
body: <p>Oracle APEX 5.1.  I am trying to create a computation that determines the value of a page item.  When I do this, I am pasting in a statement that causes the following error to appear:</p>
  
  <pre><code>Error: SyntaxError: JSON.parse: unexpected non-whitespace character after JSON data at line 5 column 1 of the JSON data
  </code></pre>
  
  <p>If I further try to save it, I get a red inline error: </p>
  
  <pre><code>ORA-20987: APEX - JSON.WRITER.NOT_OPEN - Contact your application administrator.
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/LIzT8.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/LIzT8.png" alt="Error Here"></a></p>
  
  <p>This is reproducible each time.</p>