Skip to main content


Showing posts from January, 2016

Components which refuse to live in the Shadows

I still owe you guys two more posts about Letsencrypt and Service Workers, but let me just share a short article about my struggle getting Recaptcha working in the Shadow DOM… and a crazy solution how to get such components working none the less. You can’t use the standard <div class="g-recaptcha"></div> , because Googles script simply won’t see it. You can’t use the standard Javascript API rendering mechanism, because first of all most of the documentation uses it with an id reference (which isn’t going to be found inside the Shadow DOM), but even if you use a direct element reference there (which will actually show the Recaptcha box) we reach the most painful issue: Recaptcha stays stuck on the spinner after clicking the checkbox . And yes, I checked, it’s really the Shadow DOM causing the issue, likely due to some crazy callback to some global or something. So how do we get it to work? By putting it in to the light DOM… which is far easier said than done

The road to HTTP/2

Getting HTTP/2 up and running is such a pain that I decided to that I would try sparing the rest of the world some of the pain by sharing the story. Let’s get the basics out of the way first: The biggest advantage of HTTP/2 is that files get interleaved over a single connection, which means in normal language that you can send one thousand one kilobyte sized files for virtually the same cost as one huge concatenated one megabyte file. Practically this thus means you don’t need to have huge complex build steps where you attempt to inline all your dependencies and concatenate the entire thing into one huge file. Want to read up on other advantages then this is the best resource I found. So, in this article we’re going to assume that our intention is to deploy just the Polymer Starter Kit and a simple node backend API. Additionally the goal of implementing HTTP/2 is not about getting marginal speed benefits, but about easing development by making production more like development and si