showing different page, but same content to spiders

I am showing the same content, but in a different page to spiders -- is this considered cloaking, what would happen if google found out.it's purely whitehat -- the issue is my product details pages are in a pure javascript framework, but for spiders I show the old framework which is just a simple php/html for seo purposes -- so the spiders can crawl the pages (not pure javascript). The content is the same...but structure and design is different.

I think you should use 301 redirecting.

As long as the content is the same, it isn't considered cloaking and your site should be fine.

In fact, if your site relies on javascript generated content, Google almost expects you to create a static version of the content. Check the following link which describes how Google crawls AJAX content.

https://developers.google.com/webmasters/ajax-crawling/

the problem is the spiders won't be able to get to the content, because javascript is required for the page to work. and a modern browser.