Adds the ability to configure the props of keep-alive on nuxt-child.
## Types of changes
- [ ] Bug fix (a non-breaking change which fixes an issue)
- [x] New feature (a non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing functionality to change)
## Description
In development, I found it impossible to configure the props of keep-alive when using nuxt-child, like ```exclude```. This PR adds a special prop to nuxt-child named keepAliveProps to allow developer to configure it.
```html
<template>
<div>
<nuxt-child keep-alive :keep-alive-props="{ exclude: ['modal'] }">
</div>
</template>
```
## Checklist:
- [x] My change requires a change to the documentation.
- [x] I have updated the documentation accordingly. (PR: https://github.com/nuxt/docs/pull/836)
- [ ] I have added tests to cover my changes (if not applicable, please state why)
- [x] All new and existing tests are passing.
## Types of changes
<!--- What types of changes does your code introduce? Put an `x` in all the boxes that apply: -->
- [ ] Bug fix (a non-breaking change which fixes an issue)
- [x] New feature (a non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing functionality to change)
## Description
Resolves#3920 by adding a warning during the build process and a small disclaimer into the default page component.
## Checklist:
- [ ] My change requires a change to the documentation.
- [ ] I have updated the documentation accordingly. (PR: #)
- [x] I have added tests to cover my changes (if not applicable, please state why)
- [x] All new and existing tests are passing.
In migrating an `1.4.2` app to edge, I came across this bug:
```
✖ fatal Error: Could not compile template /Users/jonas/.../node_modules/nuxt-edge/lib/app/App.js: layout is not defined
```
Upon much investigation, I traced it to the string interpolation used in the `App.js` template. I replaced with regular concatenation and the error was gone.
After #3564 and the request of #3427 (plus #3452) I decided to add a dedicated `vueConfig`object to the `nuxt.config.js` file.
The keys will be projected on Vue.config.
By default, `Vue.config.performance` is enabled in dev mode, `Vue.config.silent` is enabled in production mode.
Doc PR incoming.
Resolves: #2910, #3427
Currently we cannot define `scrollBehavior` like:
```js
scrollBehavior () { // ← we can have space before the parenthesis
// ...
}
```
Fixed this by using a `RegExp` to be more tolerant.
