Submitting search form (mini) with empty value throws error on preventDefault

[koenner01]

Preconditions

1. PHP 7.0
2. CE 2.2.x (also tested in 2.1.11)

Steps to reproduce

1. Submit search form in header with no value

Expected result

1. Nothing should happen

Actual result

1. A javascript error is throw: Cannot read property 'preventDefault' of undefined

The _onSubmit function in module-search/view/frontend/web/form-mini.js supports parameter e (for the event), but the proxy function being defined in the _create does not pass the event to the function

this.searchForm.on('submit', $.proxy(function() {
    this._onSubmit();
    this._updateAriaHasPopup(false);
}, this));

_onSubmit: function (e) {
    var value = this.element.val();

    if (isEmpty(value)) {
        e.preventDefault();
    }

    if (this.responseList.selected) {
        this.element.val(this.responseList.selected.find('.qs-option-name').text());
    }
},

[magento-engcom-team]

@koenner01, thank you for your report.
We've acknowledged the issue and added to our backlog.

[magento-engcom-team]

Hi @koenner01. Thank you for your report.
The issue has been fixed in #13811 by @koenner01 in 2.2-develop branch
Related commit(s):

• 60bfd47bc314907fad6e61b761984414f690be0b

The fix will be available with the upcoming 2.2.4 release.

[magento-engcom-team]

Hi @koenner01. Thank you for your report.
The issue has been fixed in #14185 by @dimonovp in 2.3-develop branch
Related commit(s):

• 808487bb354e97aa722a8b532a60bfff9e944676

The fix will be available with the upcoming 2.3.0 release.