fix: ensure hasAttribute exists on $root.$el

mojodna · pimlie · commit f1511ac56658 · 2019-06-26T20:59:02.000+02:00
If ...$el is a comment node (which appears to happen during initialization under some circumstances), it will be truthy but won't have `hasAttribute`.
diff --git a/src/shared/mixin.js b/src/shared/mixin.js
@@ -79,7 +79,7 @@ export default function createMixin(Vue, options) {
             ensuredPush(this.$options, 'beforeMount', () => {
               // if this Vue-app was server rendered, set the appId to 'ssr'
               // only one SSR app per page is supported
-              if (this.$root.$el && this.$root.$el.hasAttribute('data-server-rendered')) {
+              if (this.$root.$el && this.$root.$el.hasAttribute && this.$root.$el.hasAttribute('data-server-rendered')) {
                 this.$root._vueMeta.appId = 'ssr'
               }
             })

Original file line number	Diff line number	Diff line change
`@@ -79,7 +79,7 @@ export default function createMixin(Vue, options) {`
`79`	`79`	`ensuredPush(this.$options, 'beforeMount', () => {`
`80`	`80`	`// if this Vue-app was server rendered, set the appId to 'ssr'`
`81`	`81`	`// only one SSR app per page is supported`
`82`		`- if (this.$root.$el && this.$root.$el.hasAttribute('data-server-rendered')) {`
	`82`	`+ if (this.$root.$el && this.$root.$el.hasAttribute && this.$root.$el.hasAttribute('data-server-rendered')) {`
`83`	`83`	`this.$root._vueMeta.appId = 'ssr'`
`84`	`84`	`}`
`85`	`85`	`})`