Service worker task under tabs in Brave's task manager?

Hello to all the Community, does somebody knows about the section that it is marked in red?!
Brave 1.32.106
serviceworker|690x308

Hello @JimB1 , so I assuming from the first lines except the whole code thing just because can’t understand coding that has to do something with Brave’s ad-blocker
because I already know that is a Javascript…as in the task manager the text ends with -js-.Finally I hope my assuming is right and not some kind of bug. thanks for the response
Have a good day :slightly_smiling_face: