The words "password", "3141592" and "yeah" have been blocked by the custom rules. So if the password contains one of the blocked words, then the password will be marked as weak.
jQuery(document).ready(function () { "use strict"; var options = { ui: { bootstrap2: true } }, $password = $(':password').pwstrength(options), common_words = ["password", "3141592", "yeah"]; $password.pwstrength("addRule", "commonWords", function (options, word, score) { var result = false; $.each(common_words, function (i, item) { var re = new RegExp(item, "gi"); if (word.match(re)) { result = score; } }); return result; }, -100, true); });