8.22 WCAG 2.1 Success Criterion 3.2.2 − On Input

Changing a setting on a webpage should not cause a change of context such as opening a popup window or refreshing content. In addition, users should not be taken away from a webpage when changing something without warning.

Before Rectification

It is common to see drop down menus on webpages that, when changed, cause the form to be automatically submitted. This can make the website very difficult to use for persons with disabilities.

After Rectification

This option is much better as it gives the user control over when to submit the form.

WCAG 2.1 Reference:

https://www.w3.org/WAI/WCAG21/Understanding/on-input