Add comment explaining use of dummy serializer

pbugnion · pbugnion · commit a2dbe4900e6b · 2020-01-08T17:07:20.000Z
diff --git a/packages/controls/src/widget_upload.ts b/packages/controls/src/widget_upload.ts
@@ -27,6 +27,7 @@ export class FileUploadModel extends CoreDOMWidgetModel {
 
     static serializers = {
         ...CoreDOMWidgetModel.serializers,
+        // use a dummy serializer for value to circumvent the default serializer.
         value: { serialize: (x: any) => x },
     };
 }

Original file line number	Diff line number	Diff line change
`@@ -27,6 +27,7 @@ export class FileUploadModel extends CoreDOMWidgetModel {`
`27`	`27`
`28`	`28`	`static serializers = {`
`29`	`29`	`...CoreDOMWidgetModel.serializers,`
	`30`	`+ // use a dummy serializer for value to circumvent the default serializer.`
`30`	`31`	`value: { serialize: (x: any) => x },`
`31`	`32`	`};`
`32`	`33`	`}`