merge attributes

packages/core/src/utils/getRenderedAttributes.ts

@@ -1,5 +1,6 @@
 import { Node, Mark } from 'prosemirror-model'
 import { ExtensionAttribute } from '../types'
+import mergeAttributes from './mergeAttributes'
 
 export default function getRenderedAttributes(nodeOrMark: Node | Mark, extensionAttributes: ExtensionAttribute[]): { [key: string]: any } {
   return extensionAttributes
@@ -9,10 +10,6 @@ export default function getRenderedAttributes(nodeOrMark: Node | Mark, extension
       return item.attribute.renderHTML(nodeOrMark.attrs)
     })
     .reduce((attributes, attribute) => {
-      // TODO: add support for "class" and "style" merge
-      return {
-        ...attributes,
-        ...attribute,
-      }
+      return mergeAttributes(attributes, attribute)
     }, {})
 }