: But even if i specify "none" in config file, request parameter overrides it. : Echo back to browser has some issues.
the request params only override things specified in the requestHandler definition if they are listed as "defaults" you can also specify "invariants" that are used no matter what the request params say ... there are examples of this in the example solrconfig.xml and on the wiki... https://wiki.apache.org/solr/SearchHandler?highlight=%28invariants%29#Configuration -Hoss