Syntax: xml_entities path; Default: — Context: http, server, location
Specifies the DTD file that declares character entities. This file is compiled at the configuration stage. For technical reasons, the module is unable to use the external subset declared in the processed XML, so it is ignored and a specially defined file is used instead. This file should not describe the XML structure. It is enough to declare just the required character entities, for example:
<!ENTITY nbsp "