I did not see anything that explained how the history worked in frames. Since there is no public specification oon how it is supposed to work, you would have to peruse the particular browser's specification to find out how the back button is implemented. It may be connected to "physical" windows and not to individual frames. Since security restrictions prevent you from seeing the window history, there isn't much of a way to just dump it out to see what it contains. Some experimentation on your part could yield your answer.
Thanks for your input, it was highly appreciated.
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