Starters 404 page js errors

[zacnomore]

Moved from: gridsome/gridsome#799

Description

Javascript error on starters 404 page.
this.$page is null"
and
t.$page is null

Steps to reproduce

https://gridsome.org/starters/fsdqs, check the console

[zacnomore]

This comment may aid diagnosis: gridsome/gridsome#799 (comment)

[Erbenos]

Can't reproduce on current master. Public page does have the issue tho.

[florentcm]

I got the same problem, I think it has something to do with 404 on routes that have a routing template.

I have the following configured :
templates: {
ServiceGroup: '/:slug',
},

I got the same error on a url like "mywebsite.com/dfsjgknfsgnfjs" but the error goes away if I change the template to /services/:slug. But then will still have errors on "/services/dfsjgknfsgnfjs".