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Chrome extensionwhat they say

CORS Unblock

No more CORS error by appending 'Access-Control-Allow-Origin: *' header to local and remote web requests when enabled

★★★★☆4.1 (175) · 200k+ users
Free
Chrome Web Store ↗
what mrrlens sees
MRR · No price listedNo price in the listing
Opportunity—
Buyer threads · 30 d0
“after the recent update it does not work at all. Automatically turns off when I reload the page.”
#1 complaint · Bugs/Reliability · 3 of 4 complaints read · analysed Oct 29, 2026 · source

01Revenue

No price in the listing

Store data from the Chrome Web Store listing, refreshed daily. Updated 12 h ago.

02Why users leave CORS Unblock

Bugs/Reliability3 reviews · 3 of 4

Recent update broke the extension; it auto-disables on page reload, leaving users with no working CORS extension.

“after the recent update it does not work at all. Automatically turns off when I reload the page.” source ↗

Sample: 4 recent complaints (1–3★ reviews) · clustered Oct 29, 2026 · complaints from May 2025–May 2025, almost all in the last 24 months · each review labelled by a model, quotes verbatim

03How to build a better CORS Unblock

Build difficultyMediumBrowser extension permissions, platform review, security, and reliable local/remote request handling are main factors.
Three build ideas that answer these complaintsIncluded in the day pass and Pro.
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04Who wants a better CORS Unblock

0 buyer threads in the last 30 days name CORS Unblock.

05Questions about CORS Unblock

How much revenue does CORS Unblock make?

CORS Unblock's listing publishes no price and no paid plan, so MRRLens shows no revenue estimate. It may still charge on its own website; a founder can verify the real figure.

What do users complain about most in CORS Unblock?

Across 4 recent complaints, the most common is bugs/reliability (3 of 4). Recent update broke the extension; it auto-disables on page reload, leaving users with no working CORS extension.

How many people use CORS Unblock?

CORS Unblock lists 200k+ users on the Chrome Web Store, rated 4.1 (175).

See the full x-ray of CORS Unblock

Full 1-star breakdown with verbatim quotes, the build blueprint and every live thread — on every product.