el-date-picker binding data was unsuccessful in IE

import moment from "moment";

<el-form-item prop="beginTime">
<el-date-picker
v-model="addForm.beginTime"
type="date"
size="medium"
:picker-options="pickerBeginDateBefore"
@change="changeTime"
>
</el-date-picker>

this.addForm.beginTime = moment(this.addForm.beginTime).format("l");

el-date-picker type of data is returned to date back so be converted to a datetime data I used here is the moment