I am new to AngularJS. I am trying to use ng-include to include an external HTML page in my main HTML page. But the problem is I am not able to include it and getting 404. Following is the folder structure and the code,
Project Folder Structure:

buttonClick.jade (This is the starting page.)
doctype html
html(ng-app)
head
link(rel='stylesheet', href='/stylesheets/bootstrap.min.css')
link(rel='stylesheet', href='/stylesheets/style.css')
script(src='/javascripts/angular.min.js')
body(class="mainPage")
//include footer.html
include pageinclude.html
pageinclude.html
<div>
<div>Include Page Demo</div>
<div ng-include="'footer.html'"></div>
</div>
Note:
1) When I include footer.html page directly in the .jade file then it is working fine. But when I do the same using ng-include in the HTML file it does not work.
2) I have also tried the following ng-include ways,
<div ng-include="'footer.html'"></div>
<ng-include src="'footer.html'"></ng-include>