Fix error for links that are not strings

jakubrohleder · jakubrohleder · commit ecca6925791d · 2016-06-11T13:35:27.000+02:00
diff --git a/lib/isomorphic/gatsby-helpers.js b/lib/isomorphic/gatsby-helpers.js
@@ -22,7 +22,7 @@ const prefixLink = (_link) => {
     `
     invariant(isString(config.linkPrefix), invariantMessage)
 
-    return isDataURL(_link) ? _link : path.join(config.linkPrefix, _link)
+    return (!isString(_link) || isDataURL(_link)) ? _link : path.join(config.linkPrefix, _link)
   } else {
     return _link
   }

Original file line number	Diff line number	Diff line change
`@@ -22,7 +22,7 @@ const prefixLink = (_link) => {`
`22`	`22`	`
`23`	`23`	`invariant(isString(config.linkPrefix), invariantMessage)`
`24`	`24`
`25`		`- return isDataURL(_link) ? _link : path.join(config.linkPrefix, _link)`
	`25`	`+ return (!isString(_link) \|\| isDataURL(_link)) ? _link : path.join(config.linkPrefix, _link)`
`26`	`26`	`} else {`
`27`	`27`	`return _link`
`28`	`28`	`}`