Block Service Workers

Disallow to register Service Workers

What is Block Service Workers?

'Block Service Workers' is a Chrome extension that enhances your security and control over the web browsing. It prevents the registration of Service Workers, ensuring that no cache or offline operation happens without your knowledge. It allows selective permission on a per-domain basis, thus offering flexibility and control. Visit GitHub for source code and contribute to the development.

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Extension stats

By: Claudio Contin

View on Chrome Web Store

Users: 1,000+

Rating: 4.45 (11)

Version: 1.1.0 (Last updated: 2022-08-08)

Creation date: 2019-09-17

Risk impact: Moderate risk impact

Risk likelihood: Very low risk likelihood

Manifest version: 2

Permissions:

tabs
storage
notifications

Size: 114.69K

Email: cl*****@gmail.com

Ranking

# 24802 ▼ 14

Other rankings

#996 in Developer Tools ▲ 5 #3 in service keyword 18 #101 in block keyword 69 ▼ 2

Other platforms

Block Service Workers (v0.3.7resigned1)

4.75

(4) 20

Not available on Edge

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Extension summary

Analyze keywords

This extension will prevent Service Workers to be registered. You will be prompted to allow or block each individual SW, per domain. As an example, visit: https://mdn.github.io/sw-test/ The choice will be remembered by the extension, and each individual setting can be cleared.

The project source code can be found at: https://github.com/clod81/block_service_workers Contributors are welcome

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.

Pros

Effectively blocks unwanted service workers.
Helps users manage outdated service workers.
Offers a whitelist feature for preferred websites.

Cons

Frequent prompts for sites already whitelisted.
Lacks clarity on which domain a service worker belongs to during prompts.
No option for global blocking without notifications.

Most mentioned

Requests for clearer domain identification in alerts.
Desire for automatic acceptance of whitelisted sites.
Need for a global block option without prompts.

Recent reviews

it's not working for me, for example this webpage www.olx.pl. Whenever you open a new tab from this site, there is service worker actived, but not only one! it does detected olx.pl service worker but it didn't detect other one wp.pl. and I only want to block this wp.pl service worker. it's somehow hide behind avoide detection Please help me out!

Myster Jin, 2023-02-08

The allow/deny prompt should clearly state which domain attempts to register a SW. Example: I visit "website.com" which has an embedded youtube video on it. Both the website and youtube (via its iframe) attempt to register a SW, yet the extension only asks "allow or deny THIS worker?" -- I would like to block the youtube SW (which is a useless resource hog) but allow the website.com one. Thanks

Przemek D, 2022-08-16

Worked for me! (had an issue with a site whose service-worker was somehow outdated/not-updating, and this was the only thing that fixed the issue for me, so I could use the latest version of the site's/webapp's code)