Fix tab bug of GitLab/Chromium 45 (https://gitlab.com/gitlab-org/gitlab-ce/issues/3220)

tabs-to-spaces.user.js

// ==UserScript==
// @name         Tabs to spaces for GitLab
// @namespace    http://liip.ch/
// @version      0.1
// @description  Fix tab bug of GitLab/Chromium 45 (https://gitlab.com/gitlab-org/gitlab-ce/issues/3220)
// @author       Odi
// @match        https://gitlab.liip.ch/*
// @grant        none
// ==/UserScript==
/* jshint -W097 */
'use strict';

// Your code here...


$(function() {
    var replaceTabsWithSpaces = function(lines) {
        $.each(
            lines,
            function(line, elem) { 
                var new_html = $(elem).html().replace(/\t/g, '    ');
                console.log(new_html);
                $(elem).html(new_html);
            }
        );
    }

    var replaceOnPage = function() {
       replaceTabsWithSpaces($('.line_holder'));
       replaceTabsWithSpaces($('.line'));
    }
    var new_title = $('.title').html() + "<a id='switch-tabs-to-spaces' style='color:blue; font-size: 0.7em; cursor: pointer;'>[switch tabs to spaces]</a>";
    $('.title').html(new_title);
    $('#switch-tabs-to-spaces').on('click', replaceOnPage);
});