[gatsby-plugins-canonical-urls] Add default pathname (#2363)

Fixes #2362 by preventing generated canonial urls from appending `undefined` in development mode
gatsbyjs · Oct 8, 2017 · ce10ef9 · ce10ef9
1 parent 6681a96
commit ce10ef9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/packages/gatsby-plugin-canonical-urls/src/gatsby-ssr.js b/packages/gatsby-plugin-canonical-urls/src/gatsby-ssr.js
@@ -1,6 +1,6 @@
 import React from "react"
 
-exports.onRenderBody = ({ setHeadComponents, pathname }, pluginOptions) => {
+exports.onRenderBody = ({ setHeadComponents, pathname = `/` }, pluginOptions) => {
   const url = `${pluginOptions.siteUrl}${pathname}`
   setHeadComponents([<link rel="canonical" key={url} href={url} />])
 }