Edit error message html : Magento 2

Question

Where can I find HTML to add role="alert" to error messages in magento. For example, when a user provides a wrong zip code on checkout page this error message shows up.

<div for="postcode" generated="true" class="mage-error" id="postcode-error">Please enter a valid zip code (Ex: 90602 or 90602-1234).</div>

I would like to add an attribute to the above div tag. Magento version is 2.x.

Answer 1

I changed a core file to add an attribute to error messages /lib/web/jquery/jquery.validate.js

- .attr({"for": this.idOrName(element), generated: true})
+ .attr({"for": this.idOrName(element), generated: true, role: "alert"})