Chrome extension webrequest redirect after executing code that takes 4/5 seconds

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I'm trying to create a Chrome extension that executes some code (takes about 4 seconds) and afterwards does a callback that redirects the user to a page. However, no redirect takes place with the following code:

 chrome.webRequest.onBeforeRequest.addListener(function(details) {
    functionThatTakes4Seconds(function(){
            return {
                redirectUrl: redirect
            };
    );
}, {
    urls: ["url.com"]
}, ["blocking"]);

When I don't run the function that takes 4 seconds the redirect works:

 chrome.webRequest.onBeforeRequest.addListener(function(details) {
            return {
                redirectUrl: redirect
            };
}, {
    urls: ["url.com"]
}, ["blocking"]);

Does it timeout? Is there a workaround for this?

asked 51 secs ago

Bunker

86

Chrome extension webrequest redirect after executing code that takes 4/5 seconds