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feat(warn): Warn component names hyphenated into reserved names, fix #8025 #8051

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feat(warn): Warn component names hyphenated into reserved names, fix #8025 #8051

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4 changes: 3 additions & 1 deletion src/core/util/options.js
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ import config from '../config'
import { warn } from './debug'
import { nativeWatch } from './env'
import { set } from '../observer/index'
import { hyphenate } from '../../shared/util'

import {
ASSET_TYPES,
Expand Down Expand Up @@ -260,7 +261,8 @@ export function validateComponentName (name: string) {
'and must start with a letter.'
)
}
if (isBuiltInTag(name) || config.isReservedTag(name)) {
const hyphenatedName = hyphenate(name)
if (isBuiltInTag(hyphenatedName) || config.isReservedTag(hyphenatedName)) {
warn(
'Do not use built-in or reserved HTML elements as component ' +
'id: ' + name
Expand Down
9 changes: 9 additions & 0 deletions test/unit/features/options/components.spec.js
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Original file line number Diff line number Diff line change
Expand Up @@ -69,6 +69,15 @@ describe('Options components', () => {
expect('Do not use built-in or reserved HTML elements as component').toHaveBeenWarned()
})

it('should warn component names translated into native HTML elements', () => {
new Vue({
components: {
Div: { template: '<div></div>' }
}
})
expect('Do not use built-in or reserved HTML elements as component').toHaveBeenWarned()
})

it('should warn built-in elements', () => {
new Vue({
components: {
Expand Down