Checkbox List form behaviour

Need Help
#1

I am trying to make my partial containing form field type Checkbox List. I came across the fact that after rendering the page, the disabled attribute is removed from the input tag. Is this intended behavior?

<div class="field-checkboxlist">
    <div class="field-checkboxlist-container">
        <div class="checkbox custom-checkbox">
            <input id="my_field" type="checkbox" name="customfield" disabled="disabled">
            <label for="my_field" class="storm-icon-pseudo">Field label</label>
        </div>
    </div>
</div>

When I removed the field-checkboxlist wrapper class, the disabled attribute remained in place.

#2

Yes, this is the behaviour of the checkbox list, the form field is applying its enabled state to its inner elements.

#3

Thanx for your answer.