Support `attributes` option alongside `cleanId` for `toHTML` operations (#6642)

* Support `attributes` option alongside `cleanId` for `toHTML` operations

* whoops

packages/core/src/code_manager/model/HtmlGenerator.ts

@@ -27,22 +27,22 @@ export default class HTMLGenerator extends Model {
         })
         .filter(Boolean);
 
-      if (!htmlOpts.attributes) {
-        htmlOpts.attributes = (mod, attrs) => {
-          const { id } = attrs;
-          if (
-            id &&
-            id[0] === 'i' && // all autogenerated IDs start with 'i'
-            !mod.get('script') && // if the component has script, we have to leave the ID
-            !mod.get('script-export') && // if the component has script, we have to leave the ID
-            !mod.get('attributes')!.id && // id is not intentionally in attributes
-            idRules.indexOf(id) < 0 // we shouldn't have any rule with this ID
-          ) {
-            delete attrs.id;
-          }
-          return attrs;
-        };
-      }
+      const attributes = htmlOpts.attributes;
+      htmlOpts.attributes = (mod, attrs) => {
+        attrs = typeof attributes === 'function' ? attributes(mod, attrs) : attrs;
+        const { id } = attrs;
+        if (
+          id &&
+          id[0] === 'i' && // all autogenerated IDs start with 'i'
+          !mod.get('script') && // if the component has script, we have to leave the ID
+          !mod.get('script-export') && // if the component has script, we have to leave the ID
+          !mod.get('attributes')!.id && // id is not intentionally in attributes
+          idRules.indexOf(id) < 0 // we shouldn't have any rule with this ID
+        ) {
+          delete attrs.id;
+        }
+        return attrs;
+      };
     }
 
     return model.toHTML(htmlOpts);