I found your solution not to be helpful. using type="text/scss" seemed to fix it for me though if anyone else has trouble.
type="text/scss"
In my case both didn't work.
Try using the following for a fix.
<style lang="scss" rel="stylesheet/scss" type="text/scss">
I just found the answer myself :
You need to add rel="stylesheet/scss" so it looks like
rel="stylesheet/scss"
<style lang="sass" rel="stylesheet/scss"></style>
OR
<style lang="scss" rel="stylesheet/scss"></style>