title: Access-Control-Allow-Origin Openstreetmap problem
body: <p>Hi I'm trying to use <code>http://nominatim.openstreetmap.org/searchformat=json&amp;q=</code> on a WordPress site to get long and lat from an adresse to set markers on a leaflet map and it works fine as long a I'm logged in as an admin but when I'm not I get this error</p>
  
  <pre><code>Access to XMLHttpRequest at 'http://nominatim.openstreetmap.org/search?format=json&amp;q=3%20rue%20du%20G%C3%A9n%C3%A9ral%20Leclerc,%20Schwindratzheim' from origin 'http://isad-confort.projet-maquette.fr' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
  </code></pre>
  
  <p>I can't find an answers that I understand on how to set the header <code>Access-Control-Allow-Origin</code>, can someone explain me what I should do.</p>