Web apps running in browsers cannot directly access localhost or local network servers due to browser security restrictions (mixed content, CORS). This extension acts as a proxy bridge, receiving commands from the ReqBin web app and executing fetch() calls to any URL including localhost, returning the responses back to the web app.

User installs the extension, then navigates to reqbin.com. From the ReqBin web interface, they configure an HTTP request targeting localhost or a local network server. The web app sends a message to the extension via chrome.runtime.sendMessage. The service worker validates the sender origin (reqbin.com domains), parses the request payload (method, URL, headers, auth, content), and executes a fetch() call. The response (status, headers, body, timing) is sent back to the web app for display.

Target users: Web developers testing APIs running on localhost or local network servers / Backend developers debugging local HTTP services / QA engineers testing local development environments

Cannot determine whether reqbin.com itself requires login for its web interface — the extension code reveals nothing about the web app's auth requirements
Cannot determine if reqbin.com has paid tiers that affect available features in the web app that commands this extension
The extension has <all_urls> host permission but only accepts commands from reqbin.com domains — the actual network request targets are controlled by the web app

Monetization

No paid features detected

The extension contains no paid feature gating, no subscription checks, no billing APIs, no payment platform integrations, and no upgrade prompts. The 'upgrade' keyword hit on utils.js:128 is the HTTP 'Upgrade' header in the forbidden-headers list — an HTTP protocol concept, not a paid upgrade. The 'pro' keyword hit in _metadata/verified_contents.json is a base64 hash of file contents, not a pro-tier reference. The extension is a pure proxy/bridge with a single fetch function — no feature differentiation.

Confidence: 90
Payment platform: --
Source: AI / High
Login required: No
Reason: The extension itself has no login UI, no account system, no authentication tokens, and no login flow. All 'auth' references in the code (utils.js lines 21-87, fetchRequest.js lines 49-57) handle HTTP Authorization headers (Bearer Token, Basic Auth, Custom Auth) for the API requests being tested — not extension login. The service-worker.js only checks sender origin (reqbin.com domains) via 'Unauthorized sender' check, not user authentication. The popup.html simply links to reqbin.com with no login prompt. The destination service (reqbin.com) may require its own account, but the extension itself does not gate any functionality behind login.

Permission risk

High-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

主机权限覆盖范围较宽

Publisher

mail

Independent publisher

Email: [email protected]
Phone: --
Address: --

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Permissions

Host access