Unhandled promise: Protocol Error

[Tomaž]

When loading multiples pages at once I get this unhandled promise

You have triggered an unhandledRejection, you may have forgotten to catch a Promise rejection:
Error: Protocol error (Network.getCookies): Target closed.
at /root/scraper/node_modules/puppeteer/lib/cjs/puppeteer/common/Connection.js:208:63
at new Promise (<anonymous>)
at CDPSession.send (/root/scraper/node_modules/puppeteer/lib/cjs/puppeteer/common/Connection.js:207:16)
at Object.getCookies (/root/scraper/node_modules/puppeteer-page-proxy/src/lib/cdp.js:6:38)
at CookieHandler.getCookies (/root/scraper/node_modules/puppeteer-page-proxy/src/lib/cookies.js:84:51)
at requestHandler (/root/scraper/node_modules/puppeteer-page-proxy/src/core/proxy.js:15:40)
at proxyPerRequest (/root/scraper/node_modules/puppeteer-page-proxy/src/core/proxy.js:72:23)
at useProxy (/root/scraper/node_modules/puppeteer-page-proxy/src/core/proxy.js:92:15)
at /root/scraper/index.js:90:15
at /root/scraper/node_modules/puppeteer/lib/cjs/vendor/mitt/src/index.js:47:62

puppeteer@5.2.1
puppeteer-extra@3.1.13
puppeteer-page-proxy@1.2.8

[Bird Kiwi]

Do you use await page.close(); in your tasks?

[Denis]

I use custom setRequestInterception in my code, and i have this problem.

await cluster.task(async ({ page, data: url }) => {
        const proxyAddress = utils.getProxy( );
        await useProxy( page, proxyAddress );
        // await page.setRequestInterception( true );
        page.on('request', async request => {
            let requestBlocked = false;

            const reqDomain = new URL( request.url() ).host;

            if ( domainsBL ) {
                if ( domainsBL.includes( reqDomain ) ) {
                    console.log('Block and crash :(');
                    request.abort();
                    requestBlocked = true;
                }
            }
        });
});

output:

chapov@WIN-KF7HQ5BAFTM:/opt/my/zen$ npm run scrapper 

> zen-pool@1.0.0 scrapper /opt/my/zen
> nodemon scrapper.js --exec babel-node

[nodemon] 2.0.4
[nodemon] to restart at any time, enter `rs`
[nodemon] watching path(s): *.*
[nodemon] watching extensions: js,mjs,json
[nodemon] starting `babel-node scrapper.js`
queued task
Block and crach :(
(node:23058) UnhandledPromiseRejectionWarning: Error: Request is already handled!
    at Object.exports.assert (/opt/my/zen/node_modules/puppeteer/lib/cjs/puppeteer/common/assert.js:26:15)
    at HTTPRequest.abort (/opt/my/zen/node_modules/puppeteer/lib/cjs/puppeteer/common/HTTPRequest.js:317:21)
    at requestHandler (/opt/my/zen/node_modules/puppeteer-page-proxy/src/core/proxy.js:41:23)
    at runMicrotasks (<anonymous>)
    at processTicksAndRejections (internal/process/task_queues.js:97:5)
(node:23058) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 3)
(node:23058) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
^C

how can I get around this? Need to use a proxy for the per page, not for per requests

[Bird Kiwi]

@chapov I think you forgot about request.continue() after if statement.

[Denis]

oh, I wrote in the wrong place, here is another topic...

@birdkiwi not, everything falls to request.abort (), stacktrace refers to:
/opt/my/zen/node_modules/puppeteer-page-proxy/src/core/proxy.js:41:23
there:

request.abort()