work around IE textarea placeholder innerHTML/outerHTML bug (fix #4098)

yyx990803 · yyx990803 · commit ab277adfbe2a · 2016-11-15T13:41:57.000-05:00
diff --git a/src/compiler/parser/index.js b/src/compiler/parser/index.js
@@ -211,6 +211,13 @@ export function parse (
         }
         return
       }
+      // IE textarea placeholder bug
+      /* istanbul ignore if */
+      if (options.isIE &&
+          currentParent.tag === 'textarea' &&
+          currentParent.attrsMap.placeholder === text) {
+        return
+      }
       text = inPre || text.trim()
         ? decodeHTMLCached(text)
         // only preserve whitespace if its not right after a starting tag

Original file line number	Diff line number	Diff line change
`@@ -211,6 +211,13 @@ export function parse (`
`211`	`211`	`}`
`212`	`212`	`return`
`213`	`213`	`}`
	`214`	`+ // IE textarea placeholder bug`
	`215`	`+ /* istanbul ignore if */`
	`216`	`+ if (options.isIE &&`
	`217`	`+ currentParent.tag === 'textarea' &&`
	`218`	`+ currentParent.attrsMap.placeholder === text) {`
	`219`	`+ return`
	`220`	`+ }`
`214`	`221`	`text = inPre \|\| text.trim()`
`215`	`222`	`? decodeHTMLCached(text)`
`216`	`223`	`// only preserve whitespace if its not right after a starting tag`