Updating to 1.02 throws console error

[eripoll]

Version

@nuxtjs/color-mode: 1.0.2
nuxt: 2.13.3

Reproduction Link

Steps to reproduce

I just updated to 1.0.2, with no other change and my app now throws

[Vue warn]: data functions should return an object:
https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function
(found in <Root>)

What is Expected?

No error ;)

Side note:
Using 1.0.0 with nuxjs 2.13.3 in SPA mode, when generating and starting, I get the following error

TypeError: Cannot read property 'preference' of undefined
    at be (app.460976a.js:1)
    at app.460976a.js:1
    at f (vendors~app.23ddfa9.js:2)
    at Generator._invoke (vendors~app.23ddfa9.js:2)
    at Generator.O.forEach.e.<computed> [as next] (vendors~app.23ddfa9.js:2)
    at r (app.c57ce17.js:2)
    at l (app.c57ce17.js:2)

[eripoll]

Ok so I updated to Nuxtjs 2.14.0 and color 1.0.2
I still have the warning and
yarn build + yarn start as an SPA still throws the same error on start up:

TypeError: Cannot read property 'preference' of undefined
    at be (app.250609e.js:1)
    at app.250609e.js:1
    at h (vendors~app.761da66.js:2)
    at Generator._invoke (vendors~app.761da66.js:2)
    at Generator.next (vendors~app.761da66.js:2)
    at r (app.a5226ce.js:2)
    at l (app.a5226ce.js:2)

FIY 1.0.0 doesn't throw the "[Vue warn]: data functions should return an object:
https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function
(found in )" warning but still throws the "Cannot read property 'preference' of undefined" when building.

Any clue what could be happening since everything is a-OK when yarn dev and I didn't have any issue beforehand?

[rankjie]

ctx.nuxtState.colorMode is undefined on my dev environment (macOS 10.15.6, nuxt 2.14.0, SPA mode)
This commit caused the bug and changing themes is not working in 1.0.2.
Revert this part fixed everything for me. 7a873ab#diff-58e6cb97fd6582c2fdc3e79032ce4070L13-L1

---

Update 1:
Cause: nuxtState is available only in universal mode, which makes ctx.nuxtState.colorMode undefined in SPA mode.

[eripoll]

@rankjie I applied your patch and I am able to select Theme on 1.02, thanks!

However, when building (yarn build) and starting (yarn start), I still have my app crashing with the
Cannot read property 'preference' of undefined
error.

Do you see the same issue? Any idea on how to fix that?

[atinux]

Really sorry about this, I forgot the SPA mode 🤦

I just releases v1.0.3 to fix this regression.

[hut-a-massmediagroup-100]

@atinux, i have the same problem. please check my issue - #25