Pipes is a Ruby stack, with sinatra at its core. But viewing the HTML is actually all client side, meaning javascript. When the block output view gets more comp

Pipes is a Ruby stack, with sinatra at its core. But viewing the HTML is actually all client side, meaning javascript. When the block output view gets more complicated I'll probably move it to the server. For now I added some code to detect the different formatted parse errors in webkit browsers, maybe that catches also yours? But I'm not very happy with just showing the HTML (though it goes through a formatter at least) in that error case. In the long term the extract block should get a visual element picker to create selectors, then it will matter less, but that's something for later.