Add the spiderable
package to your project:
meteor add spiderable
This will automatically add the correct <meta>
tag to your page, and spiders will be served a PhantomJS-generated version of your site.
Note that the Google Webmaster tools will still show the empty AJAX version of your page in the crawl results, but Google will crawl and index your page correctly. This appears to be a bug in the Webmaster tools. You can verify that the app was successfully crawled by going to your Webmaster tools homepage (where the list of your websites is). Your website should have a screenshot showing what the Google crawler actually saw.