<router-link> throws an error if multiple child elements provided with v-slot API.

[theharshin]

Version

3.1.3

Reproduction link

https://codesandbox.io/s/condescending-yalow-gn5fz?fontsize=14&hidenavigation=1&module=%2Fsrc%2FApp.vue&theme=dark

Steps to reproduce

Create a router-link component with v-slot API and provide multiple child elements.

What is expected?

According to the docs here: https://router.vuejs.org/api/#v-slot-api-3-1-0
The content should be automatically wrapped with and router-link should work fine.

What is actually happening?

The rendering of a component fails and throws an error with the following message: "TypeError: this.props is undefined"

[theharshin]

It looks like when Vue tries to show a warning for a single child but fails because this.props is undefined.

[LinusBorg]

should be this.$props.to

vue-router/src/components/link.js

Line 110 in 927f0c9

this.props.to