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Add-ons
  1. MDN
  2. Mozilla
  3. Add-ons
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  6. proxy
  7. proxy.registerProxyScript()

proxy.registerProxyScript()

In This Article
  1. Syntax
    1. Parameters
    2. Return value
  2. Browser compatibility
  3. Examples
    1. Example extensions

Registers a Proxy Auto-Configuration (PAC) file. The file is executed immediately, and its FindProxyForURL() function will be called for any HTTP, HTTPS, or FTP requests.

If PAC files are registered by more than one extension, then requests will be passed initially to the one that was registered first.

  • If the FindProxyForURL() function in the first PAC returns "DIRECT" for a request, then the request will be passed unchanged to the FindProxyForURL() function in the next PAC.
  • If the FindProxyForURL() function in the first PAC proxies the request by returning "PROXY" or some other proxying value, then the proxy URL will be passed to the FindProxyForURL() function in the next PAC.

This is an asynchronous function that returns a Promise.

Syntax

var registering = browser.proxy.registerProxyScript(
  url   // string
)

Parameters

url
String. URL pointing to the PAC file to load. PAC files must be bundled with the extension, and url must be relative to the extension's manifest.json file.

Return value

A Promise that will be fulfilled with no arguments when the PAC file has been registered, or rejected if there was an error.

Browser compatibility

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Examples

const proxyScriptURL = "proxy/proxy-script.js";
browser.proxy.registerProxyScript(proxyScriptURL).then();

Example extensions

  • proxy-blocker

Acknowledgements

Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.

Document Tags and Contributors

Tags: 
  • Add-ons
  • API
  • Function
  • Method
  • Proxy
  • Reference
  • registerProxyScript
  • WebExtensions
 Contributors to this page: andrewtruongmoz, wbamberg
 Last updated by: andrewtruongmoz, Jul 17, 2017, 1:03:53 PM
See also
  1. Browser extensions
  2. Getting started
    1. What are extensions?
    2. Your first extension
    3. Your second extension
    4. Anatomy of an extension
    5. Example extensions
  3. How to
    1. Intercept HTTP requests
    2. Modify a web page
    3. Add a button to the toolbar
    4. Implement a settings page
  4. User interface
    1. Introduction
    2. Toolbar button
    3. Address bar button
    4. Sidebar
    5. Context menu items
    6. Options page
    7. Bundled web pages
    8. Notifications
    9. Address bar suggestions
    10. Developer tools panels
  5. Concepts
    1. Using the JavaScript APIs
    2. Content scripts
    3. Match patterns
    4. Internationalization
    5. Content Security Policy
    6. Native messaging
  6. Porting
    1. Porting a Google Chrome extension
    2. Porting a legacy Firefox extension
    3. Embedded WebExtensions
    4. Comparison with the Add-on SDK
    5. Comparison with XUL/XPCOM extensions
    6. Chrome incompatibilities
    7. Differences between desktop and Android
  7. Firefox workflow
    1. Temporary Installation in Firefox
    2. Debugging
    3. Developing for Firefox for Android
    4. Getting started with web-ext
    5. web-ext command reference
    6. Extensions and the Add-on ID
    7. Publishing your extension
  8. JavaScript APIs
    1. Browser support for JavaScript APIs
    2. alarms
    3. bookmarks
    4. browserAction
    5. browsingData
    6. commands
    7. contextMenus
    8. contextualIdentities
    9. cookies
    10. devtools.inspectedWindow
    11. devtools.network
    12. devtools.panels
    13. downloads
    14. events
    15. extension
    16. extensionTypes
    17. history
    18. i18n
    19. identity
    20. idle
    21. management
    22. notifications
    23. omnibox
    24. pageAction
    25. permissions
    26. privacy
    27. proxy
      1. Methods
        1. registerProxyScript()
      2. Events
        1. onProxyError
    28. runtime
    29. sessions
    30. sidebarAction
    31. storage
    32. tabs
    33. topSites
    34. types
    35. webNavigation
    36. webRequest
    37. windows
  9. Manifest keys
    1. applications
    2. author
    3. background
    4. browser_action
    5. chrome_settings_overrides
    6. chrome_url_overrides
    7. commands
    8. content_scripts
    9. content_security_policy
    10. default_locale
    11. description
    12. developer
    13. devtools_page
    14. homepage_url
    15. icons
    16. incognito
    17. manifest_version
    18. name
    19. omnibox
    20. optional_permissions
    21. options_ui
    22. page_action
    23. permissions
    24. protocol_handlers
    25. short_name
    26. sidebar_action
    27. version
    28. web_accessible_resources
  10. Themes
  11. Publishing add-ons
  12. Guides
    1. Signing and distribution overview
    2. Submit an add-on
    3. Creating an appealing listing
    4. Review policies
    5. Developer agreement
    6. Featured add-ons
    7. Contact addons.mozilla.org
  13. Community and support
  14. Channels
    1. Add-ons blog
    2. Add-on forums
    3. Stack Overflow
    4. Development newsgroup
    5. IRC Channel
  15. Legacy add-ons
  16. Legacy technologies
    1. Add-on SDK
    2. Legacy Firefox for Android
    3. Bootstrapped extensions
    4. Overlay extensions