1389459 - webextension: Proxy API is broken in FF 56

Status: RESOLVED DUPLICATE of bug 1389718

(WebExtensions :: Request Handling, defect)

Description

[Rustam]

User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36

Steps to reproduce:

Use this example:
https://github.com/mdn/webextensions-examples/tree/master/proxy-blocker

change browser.proxy.registerProxyScript to browser.proxy.register
DIRECT 1234 to DIRECT

Try to test


Actual results:

Error in the console:
Error: Could not establish connection. Receiving end does not exist.

I can watch http://example.com/, it is not blocked


Expected results:

Example's code must be updated and example must work in FF56

Comment 1

[Rustam]

56.0b1 (64-bit)

Comment 2

[Rustam]

As for the 2nd beta, Proxy API for packed embedded webextension, installed from the file is working. But for temporary pure webextension it is not working

Comment 3

[dcanofr]

Not working also in FF 56.0b3.

As said before in the example on line 21:

--- Begin Background script code
browser.runtime.sendMessage(newSettings.blockedHosts.newValue, {toProxyScript: true});
--- End

this message is never received by the pac file script.

--- Begin Pacfile script code
browser.runtime.onMessage.addListener((message) => {
  blockedHosts = message;
});
--- End

Messages from the pac file to the background script work fine. I can send messages and show logs on console.