AJAX - The Complete Reference

Chapter 2: Pre-Ajax JavaScript Communications Techniques 29

PART I

It is also possible to use standard frames as a communication mechanism. However,

employing the frameset to do so will likely have the side effect of preserving a URL, and it

is more difficult to completely hide such frames from the user’s view. Thus we focus on

using iframes, as it is the most common frame-based communication approach used.

Data Submission Considerations

While query strings may (or may not) have inherent data size limitations, posted form data

clearly does not. Just about any form of mischief you can imagine is possible from malicious

FIGURE 2-3 Hidden iframe method revealed