I have a simple example
<select>
<option value="Hallo" onmouseover="alert('HAllo');">Value 1</option>
</select>
W3School says that the onmouseover
Event is supported by the option
tag as part of the standard event attributes in HTML. I am sure that it worked a few browser versions earlier but now no javascript is called.
It does not work with Vivaldi, chrome or firefox
NOTE: I do not use jquery. Thank you for not marking this question as a duplicate when the other linked question contains a technology I don't use.