Demonstrating weird behavior when triggering a second ajax request within the response handler of a first one. The response handler of the second request is never actually triggered, it's actually the response handler of the first ajax request that gets triggered , leading to recursive requests to ajax2.

npm install && ./node_modules/.bin/bower install && ./node_modules/.bin/polyserve -p 8081

Then hit up https://localhost:8081/components/iron-ajax-sequence/index.html