EDIT:
This is a very old question, when escaped_fragment was necessary for search engines, but nowadays, search engines do understand Javascript very well, so this question becomes irrelevant.
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I was wondering how much SEO friendly could Polymer be.
As all the code is fully dynamic like Angular, how can the search engines pick up the information of the page? Because also doing things in Angular, I really had a hard time making it SEO friendly.
Will there be a tool to generate the escaped_fragment automatically to feed the search engines?
I guess Google may have thought of the solution, but I wasn't able to find it (even on Google).
According to the Polymer FAQ all we have is
Crawlers understand custom elements? How does SEO work?
They don’t. However, search engines have been dealing with heavy AJAX based application for some time now. Moving away from JS and being more declarative is a good thing and will generally make things better.
http://www.polymer-project.org/faq.html#seo
Not very helpful