"Object doesn't support property or method 'slice'"

shawna

When using Quasar UMD mode, I found an error that appeared in IE but not FF nor Chrome. Here is the console error msg:
Screenshot (51).png
And my demo code:

<!DOCTYPE html>
<html>

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <link
        href="https://fonts.googleapis.com/css?family=Roboto:100,300,400,500,700,900|Material+Icons|Material+Icons+Outlined"
        rel="stylesheet" type="text/css">
    <link href="https://cdn.jsdelivr.net/npm/@mdi/font@^4.0.0/css/materialdesignicons.min.css" rel="stylesheet"
        type="text/css">
    <link href="https://cdn.jsdelivr.net/npm/animate.css@^3.5.2/animate.min.css" rel="stylesheet" type="text/css">
    <link href="https://cdn.jsdelivr.net/npm/quasar@1.9.9/dist/quasar.min.css" rel="stylesheet" type="text/css">
</head>

<body>
    <div id="q-app">
        <q-item dense>
            <q-item-section>
                <q-item-label>Time zone</q-item-label>
            </q-item-section>
            <q-item-section>
                <q-select dense outlined options-dense :options='timezoneOptions' v-model='timezone' emit-value
                    map-options></q-select>
            </q-item-section>
        </q-item>

    </div>
    <script src="https://cdn.jsdelivr.net/npm/quasar@1.9.9/dist/quasar.ie.polyfills.umd.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/vue@^2.0.0/dist/vue.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/quasar@1.9.9/dist/quasar.umd.min.js"></script>
    <script>
        new Vue({
            el: '#q-app',
            data: function () {
                return {
                    timezone: 1,
                    timezoneOptions: [
                        { label: '(GMT-12:00) Eniwetok, Kwajalein', value: 0 },
                        { label: '(GMT-11:00) Midway Island, Samoa', value: 1 }
                        // ... the rest of timezone
                    ]
                }
            }
        })
    </script>
</body>

</html>

Thanks for helping me!

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"Object doesn't support property or method 'slice'"