Pug multiline attribute values are marked as error

[gyohng]

This is a perfectly legal syntax that compiles and works well inside a vue file. However, volar seems to mark it as an error:

<template lang="pug">
div
  component(attr0="aaaaa" jsdata=`{
    "page": "measure",
    "action": "start"
  }`)
</template>
<script>
</script>