function _escapePath(pathname) {
    return pathname.replace(/[?#]/g, function(match) {
        return encodeURIComponent(match);
    });
}
Check whether string has valid IBAN Checksum
by performing basic mod-97 operation and
the remainder should equal 1
-- Start by rearranging the IBAN by moving the four initial characters to the end of the string
-- Replace each letter in the string with two digits, A -> 10, B = 11, Z = 35
-- Interpret the string as a decimal integer and
-- compute the remainder on division by 97 (mod 97)
Reference: https://en.wikipedia.org/wiki/International_Bank_Account_Number

@param {string} str
@return {boolean}