"'0' is not a valid attribute name" when navigating to a wildcard route with "props: true"

[KaelWD]

Version

3.0.1

Reproduction link

https://codesandbox.io/s/oo6x710k39

Steps to reproduce

• click 'foo'
• click 'bar'
• observe the error
• click 'home'
• note that the page title no longer updates

What is expected?

Either give a console warning, or silently ignore the numeric props

What is actually happening?

The following error is thrown, breaking the whole page

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In the actual app everything is wrapped in another dynamic route, which is what has props: true

[posva]

It looks like the regex generated adds a param named 0, and therefore vue-router tries to pass that as a prop, but since there's no prop named 0, it passes it as an attribute. Resulting on the error you see. A workaround would be using a function for props and manually stripping that off. I'm currently on a fix for this