lib/libs.js
function withoutTrailingSlash (s) {
                    if(!IS_BROWSER && HAS_OS && require('os').platform === 'win32') return s.replace(/\\+$/, '');
                    return s.replace(/\/+$/, '');
                }
function withoutTrailingSlash (s) {
                    if(!IS_BROWSER && HAS_OS && require('os').platform === 'win32') return s.replace(/\\+$/, '');
                    return s.replace(/\/+$/, '');
                }
Strips the trailing slashes from a string.
@param {String} s The string to operate on.
If using Node.js, it will replace the trailing slash based on the value of os.platform
(i.e. if windows, '\\' will be replaced, '/' otherwise).
@returns {String} The string without a trailing slash.
@function