Fix to ignore global rest query headers when they are not configured.

packages/server/src/integrations/queries/sql.ts

@@ -9,7 +9,9 @@ export function enrichQueryFields(
   parameters = {}
 ) {
   const enrichedQuery: { [key: string]: any } = Array.isArray(fields) ? [] : {}
-
+  if (!fields || !parameters) {
+    return enrichedQuery
+  }
   // enrich the fields with dynamic parameters
   for (let key of Object.keys(fields)) {
     if (fields[key] == null) {

packages/server/src/threads/query.js

@@ -47,10 +47,12 @@ class QueryRunner {
     const enrichedContext = { ...enrichedParameters, ...this.ctx }
 
     // Parse global headers
+    if (datasource.config.defaultHeaders) {
       datasource.config.defaultHeaders = enrichQueryFields(
         datasource.config.defaultHeaders,
         enrichedContext
       )
+    }
 
     let query
     // handle SQL injections by interpolating the variables