feat: add note on isCustomElement in runtime-only builds #779
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Description of Problem
The
isCustomElement
config option only applies when using the runtime compiler. Since most users will be using the runtime-only compiler (eg. viavue-loader
or@vue/cli
), they may attempt to configure this option by mistake (eg.vuejs/vue-next
#2779).Proposed Solution
Let's add a note that they may need to configure
vue-loader
'scompilerOptions
for custom elements to work properly.Additional Information
The language used is taken from the migration guide.