In the event that the webpage you are trying to load lacks any styling information, it is likely due to incorrect relative paths in the external stylesheets with respect to the main document. It's important to note that this isn't like using an iframe; instead, you are essentially merging one document into another.
Another issue arises when loading the complete page along with the doctype, html, head, and body tags. While most modern browsers can handle this to some extent, the outcome remains unpredictable as combining documents in this manner does not adhere to valid HTML standards. Furthermore, placing CSS links outside of the head section is invalid, which is the result of a disorderly amalgamation of documents.
To ensure compliance and proper rendering, consider implementing the following steps in the Success callback:
- Transfer all link elements to a new jQuery element
- Replicate the content of all scripts within the head section
- Copy the .html() content from the loaded document's body tag
- Attach the transferred link elements (from step 1) to the host document's head section
- Create a new script tag with the duplicated script contents and insert it into the head section
- All tasks completed!
While this process may seem somewhat complex, if your goal is to load an entire page via AJAX, this method is your best bet. Keep in mind that integrating a full page in this manner may present challenges with the page's JavaScript functionality, especially code meant to execute during the initial load. If such issues arise, you may need to optimize the source page for smoother loading or explore utilizing iframes to meet your requirements.
Additionally, it might be worth considering whether directly loading the external CSS files in the host document would be a more practical approach from the outset.