Why is it that if I try to unlock a chapter with a tweet it wants access to:<p>Read Tweets from your timeline.<p>See who you follow, and follow new people.<p>Update your profile.<p>Post Tweets for you.<p>Seems a little excessive.
Edit: Link to screenshot - <a href="http://imgur.com/a/rAO0d" rel="nofollow">http://imgur.com/a/rAO0d</a>
I think it looks like a cool series of books.<p>I also hate that you describe it as "free to read" but then require me to give you access to my Twitter account in order to read it. I don't know you, and I don't want to give you access to update my Twitter profile or post Tweets on my behalf. (Yes, I know, then just pay for the book.)
Is there a reason you don't make a book dedicated to just dealing with grunt, gulp, browserify, babel, web pack, etc. instead of splitting some of each between ES6 and Universal JavaScript?