title: tomcat 8 throws 400 errors when dealing with get requests
body: <p>it seems to be a problem with the curly brackets {} that are used. 
  I have tried changing the connector that is in server.xml by adding  <code>relaxedPathChars='{ | }' relaxedQueryChars='{ | }'</code>  but hasn't fixed the issue. also added <code>URIEncoding="UTF-8" useBodyEncodingForURI="true"</code> to the same connector.</p>
  
  <p>I am unable to change the curly brackets myself as its coming from an external script and i cannot change the url string beforehand, so i am trying to change settings within tomcat to allow {} but no luck so far.</p>
  
  <p>This is all on a nginx web server, if that helps.</p>