Browser back works only if user clicks on the current web page.

[RajuAyyappan]

Back event gets triggered only when only when I click or do some actions on the current page

the below function gets triggered only when user manually do some click on the web page.
$.fn.frameInit = function initFrame() {

Scenario1:
Open new tab in Chrome browser and load a.html , go forward to the next page (say, b.html).
click on browser back button. The plugin dosent work

Scenario2:
Open new tab in Chrome browser and load a.html , go forward to the next page (say, b.html).
Now click somewre around the page (b.html) or press any key on the keyboared.
Now click on the browser back button. the plugin works as expected..