A simple way to remove Bootstrap’s formatting and JavaScript influence

strapless.js

(function(){
	
	var body = document.body,
		css = document.querySelectorAll('[href*=bootstrap][href$=css]'),
		css_len = css.length,
		js = document.querySelectorAll('[src*=bootstrap][src$=js]'),
		js_len = js.length,
		xhr = new XMLHttpRequest(),
		strapped = false;
	
	// Found Bootstrap CSS
	if ( css_len ) {

		// removing the CSS is easy
		while ( css_len-- ) {
			css[css_len].parentNode.removeChild(css[css_len]);
		}

	}

	// Found Bootstrap JS
	if ( js_len ) {

		// resetting the HTML is more difficult
		xhr.onload = function(){
			var new_body = this.responseXML.body;
			
			// remove the scripts
			while ( js_len-- ) {
				js[js_len].parentNode.removeChild(js[js_len]);
			}
			
			body.parentNode.replaceChild( new_body, body );
		}
		
		xhr.open('GET', window.location.href, true);
		xhr.responseType = 'document';
		xhr.send();

	}

}());