update the logic to only try to unmarshal json when it's json

Author: reversearrow

datamodel/spec_info.go

@@ -106,12 +106,13 @@ func ExtractSpecInfoWithDocumentCheck(spec []byte, bypass bool) (*SpecInfo, erro
 
 	parseJSON := func(bytes []byte, spec *SpecInfo, parsedNode *yaml.Node) error {
 		var jsonSpec map[string]interface{}
-		if utils.IsYAML(string(bytes)) {
+		switch {
+		case utils.IsYAML(string(bytes)):
 			_ = parsedNode.Decode(&jsonSpec)
 			b, _ := json.Marshal(&jsonSpec)
 			spec.SpecJSONBytes = &b
 			spec.SpecJSON = &jsonSpec
-		} else {
+		case utils.IsJSON(string(bytes)):
 			if err := json.Unmarshal(bytes, &jsonSpec); err != nil {
 				return err
 			}