Adding a Placeholder on a Livesearch Macro doesn't show the text on search field

Issue Summary

A placeholder text isn't showing on Livesearch macro on any page. This issue is happening on versions 8.4 and above. That's not happening with versions 8.3.2 and below.

This is reproducible on Data Center: yes

Steps to Reproduce

1. Add a Livesearch macro on the page;
2. Add a text to placeholder attribute;
3. Save the macro
4. Publish the page

Expected Results

Livesearch search bar should show the placeholder text inside it

Actual Results

Livesearch search bar doesn't show the placeholder text inside it

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available