ProtocolError: Protocol error (Target.closeTarget): Target closed.

[sophianathanielle]

Product: puppeteer

Expectation: Run without giving this error in CI. - ProtocolError: Protocol error (Target.closeTarget): Target closed.

Actual: Gives this error.

Stack trace:

     ProtocolError: Protocol error (Target.closeTarget): Target closed.
 
       at executor (node_modules/puppeteer/src/common/Connection.ts:106:16)
       at new ZoneAwarePromise (node_modules/zone.js/bundles/zone-testing-bundle.umd.js:1347:33)
       at Connection.send (node_modules/puppeteer/src/common/Connection.ts:102:12)
       at Page.close (node_modules/puppeteer/src/common/Page.ts:2930:38)
       at apply (node_modules/@axe-core/puppeteer/src/axePuppeteer.ts:284:19)
       at ZoneDelegate.invoke (node_modules/zone.js/bundles/zone-testing-bundle.umd.js:407:30)
       at ProxyZoneSpec.onInvoke (node_modules/zone.js/bundles/zone-testing-bundle.umd.js:3765:43)
       at ZoneDelegate.invoke (node_modules/zone.js/bundles/zone-testing-bundle.umd.js:406:56)
       at Zone.run (node_modules/zone.js/bundles/zone-testing-bundle.umd.js:167:47)
       at apply (node_modules/zone.js/bundles/zone-testing-bundle.umd.js:1325:38)
       at ZoneDelegate.invokeTask (node_modules/zone.js/bundles/zone-testing-bundle.umd.js:441:35)
       at ProxyZoneSpec.onInvokeTask (node_modules/zone.js/bundles/zone-testing-bundle.umd.js:3796:43)
       at ZoneDelegate.invokeTask (node_modules/zone.js/bundles/zone-testing-bundle.umd.js:440:64)
       at Zone.runTask (node_modules/zone.js/bundles/zone-testing-bundle.umd.js:212:51)
       at drainMicroTaskQueue (node_modules/zone.js/bundles/zone-testing-bundle.umd.js:627:39)
           at runMicrotasks (<anonymous>)

This: at apply (node_modules/@axe-core/puppeteer/src/axePuppeteer.ts:284:19) is: blankPage.close();

Should this line be awaited? (According to this issue)

Motivation: I'm using the package jest-puppeteer-axe (via storyshots-puppeteer) and this is causing it not to work in CI.

axe-core version: 4.4.1
@axe-core/puppeteer: 4.4.2

- Node version: 16.13.2
- Platform: Windows

[jpveooys]

I'm seeing this as well at the end of the test suite run. (Also using storyshots-puppeteer here. )

Shorter but similar stack trace:

  ● Test suite failed to run

    ProtocolError: Protocol error (Target.closeTarget): Target closed.

      at ../../node_modules/puppeteer/src/common/Connection.ts:106:16
      at Connection.send (../../node_modules/puppeteer/src/common/Connection.ts:102:12)
      at Page.close (../../node_modules/puppeteer/src/common/Page.ts:2930:38)
      at ../../node_modules/@axe-core/puppeteer/src/axePuppeteer.ts:284:19
          at runMicrotasks (<anonymous>)

I'm seeing this both on GitHub Actions and locally on Ubuntu.

Versions:

axe-core: 4.4.1
@axe-core/puppeteer: 4.4.2
Node.js: v16.14.2

[jpveooys]

Replacing:

https://github.com/dequelabs/axe-core-npm/blob/af77177b8431ba74c81e0dc22fe7c320e6b98565/packages/puppeteer/src/axePuppeteer.ts#L277-L285

with:

    try {
      return await blankPage
        .evaluate(
          axeFinishRun,
          partialResults as JSONArray,
          axeOptions as JSONObject
        )
    } finally {
      await blankPage.close();
    }

does indeed seem to resolve the problem from some local testing.

Looks like the playwright library could benefit from a similar change too:

https://github.com/dequelabs/axe-core-npm/blob/af77177b8431ba74c81e0dc22fe7c320e6b98565/packages/playwright/src/index.ts#L294

[michael-siek]

Closing this has been resolved in @axe-core/[email protected] and @axe-core/[email protected].