Importance of the lang attribute on HTML elements #875
Description
Problematic behavior
Screen readers use this information to determine the pronunciation of text. Without this attribute, a screen reader might pronounce French with an English accent. This also helps search engines index content. Translation tools can more easily identify the source language and suggest translations.
This attribute is not declared in the header <html>
Remember to change this attribute when selecting a new language in the language selector.
Expected behavior/code
<html class="cunningham-theme--dsfr lasuite--gaufre-loaded">
Possible Solution
If the user interface is in English, add the attribute lang="en” or in French lang="fr"
