mirror of
https://github.com/mdn/webextensions-examples.git
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72dfcf1bad
* proxy-blocker updates These changes replace the use of the deprecated `proxy.register` (PAC file) with `proxy.onRequest` to handle the proxying of requests. * Changes as per feedback * Fixed typo * Addressed feedback relating to issue with variable initialization after enable/disable * Typo fix * The changes as suggested by @wbamberg
20 lines
1015 B
Markdown
20 lines
1015 B
Markdown
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## What it does
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This extension uses the proxy API listener `onRequest` to listen for requests to visit a web page, compare the webpage's domain with a blocked host list, and proxy domains on the blocked list to 127.0.0.1.
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The list of blocked domains is held in local storage and given the initial value `["example.com", "example.org"]` when the extension installs. The list can be modified through the extension"s options page.
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Note that the hostname-matching is simple: hostnames must match an entry in the list if they are to be blocked. So with the default settings, "example.org" is blocked but "www.example.org" is permitted.
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To try out this extension:
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* install it
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* visit `http://example.com` and see it is blocked
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* visit `about:addons`, open the add-on's preferences, and change the hostnames in the text box
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* visit some pages to see the effect of your changes.
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## What it shows
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* How to implement `browser.proxy.onRequest` and proxy requests.
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* How to store and retrieve lists from local storage.
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