Chage of api: stores DOM instead of string in PageData
Relax the content security policy for Seess
Fix URL error in content script
now PageData also processes img and iframe.
Now we renders the inspected window into iframe. Doctype is also considered.
Refactor iframe generation code into Renderer class.
Fix wrong syntax in <link>
Make renderer wait for assets to load.
Renderer walks the DOM and generates the initial page snapshot when iframe completes loading.
Function stub for Renderer#apply
Checks rendered iframe compatibility mode instead of matching doctype
update readme