[bugfix] Do not apply REST Server _ output-doctype, _omit-xml-declaration, or _omit-original-xml-declaration parameters to XQuery execution as these can conflict with XQuery Serialization settings

Author: adamretter

exist-core/src/main/java/org/exist/http/RESTServer.java

@@ -498,6 +498,11 @@ public void doGet(final DBBroker broker, final Txn transaction, final HttpServle
             // found an XQuery or XProc resource, fixup request values
             final String pathInfo = pathUri.trimFromBeginning(servletPath).toString();
 
+            // reset any output-doctype, omit-xml-declaration, or omit-original-xml-declaration properties, as these can conflict with others set via XQuery Serialization settings
+            outputProperties.setProperty(EXistOutputKeys.OUTPUT_DOCTYPE, "no");
+            outputProperties.setProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
+            outputProperties.setProperty(EXistOutputKeys.OMIT_ORIGINAL_XML_DECLARATION, "yes");
+
             // Should we display the source of the XQuery or XProc or execute it
             final Descriptor descriptor = Descriptor.getDescriptorSingleton();
             if (source) {