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Thread: ComboBox expands upwards in FF57

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  1. #1
    Sencha Premium User mankz's Avatar
    Join Date
    Nov 2007
    Stockholm, Sweden

    Default ComboBox expands upwards in FF57

    Run this code in FF on Linux/Mac. Combo box doesn't look correct, Chrome looks ok.Screen Shot 2017-11-21 at 17.07.09.png

        <title>Ext JS Widgets: Combo Box</title>
        <link rel="stylesheet" type="text/css"
        <script type="text/javascript" src="../extjs-6.5.1/build/ext-all-debug.js"></script>
        <script type="text/javascript" src="../extjs-6.5.1/build/classic/theme-triton/theme-triton.js"></script>
        <script type="text/javascript">
    Ext.define('User', {
        extend: '',
        idProperty: 'id',
        proxy: {
            type: 'ajax',
            api: {
                read: 'combodata.js'
        fields: [{
            name: 'id',
            type: 'int'
            'name', {
                type: 'date',
                name: 'dateOfBirth',
                dateFormat: 'Y_m_d'
    myStore = new{
        model: 'User',
        data: [{
            "id": 1,
            "name": "Mike",
            "dateOfBirth": "2010_01_22",
            "active": true
        }, {
            "id": 2,
            "name": "Ben",
            "dateOfBirth": "2010_01_22",
            "active": true
        }, {
            "id": 3,
            "name": "Anna",
            "dateOfBirth": "2010_01_22",
            "active": true
    Ext.onReady(function () {
        var form = new Ext.form.ComboBox({
            displayField: 'name',
            valueField: 'id',
            width: 400,
            store: myStore,
            queryMode : 'local',
            renderTo: document.body
    <h1>Ext JS Widgets: Combo Box</h1>

  2. #2
    Sencha User Animal's Avatar
    Join Date
    Mar 2007


    A change to the way FF makes the viewport size available?

    Floated component auto alignment adapts to fit where the space is, so it seems to think that there's not enough space below.

  3. #3
    Sencha Premium User alexander.urban's Avatar
    Join Date
    Nov 2013


    @mats Just for reference, can you check in FF in "about:config" the value of "dom.w3c_touch_events.enabled"? ExtJS seems to have issues if the value is "1", while "0" and "2" seem to work okay.

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