Meta tags and Twitter Cards

I need to set meta tags dynamic in my 1.2 meteor app. The reason is that I will use Twitter Cards. Twitter cards call my app (by the url in a tweet) and fetch some data in the Twitter meta tags in my app. The problem is that the data is in a template, and i don’t know how to handle the meta tags. I tried to use the lookback:seo package but I couldn’t get it to work, problems with the card validator. Is there anyone who use Twitter Cards or know how to handle the meta tags.
Thanks for any help

Have you tried kadirahq/meteor-dochead to dynamically add meta tags?

Hi @sungwoncho, how can I use this plugin to write twitter tags? Really need to add this to my webapp. Thanks in advance