Issue with puppeteer for mocking network requests

[efattal]

Stencil version:

 @stencil/core@ 1.12.1 (actually all versions after 1.8.11)

I'm submitting a:
[x] bug report
[ ] feature request
[ ] support request => Please do not submit support requests here, use one of these channels: https://stencil-worldwide.herokuapp.com/ or https://forum.ionicframework.com/

Current behavior:
Mocking networks requests with page.setRequestInterception(true) doesn't work anymore while it worked with @stencil/core 1.8.11.

Error:

Request is already handled!

      12 |     page.on('request', function(req: Request) {
      13 |       if (req.method() == 'GET' && req.url().endsWith('/api/v1/employees')) {
    > 14 |         req.respond({
         |             ^
      15 |           status: 200,
      16 |           contentType: 'application/json',
      17 |           body: JSON.stringify({

      at assert (node_modules/puppeteer/lib/helper.js:270:11)
      at Request.respond (node_modules/puppeteer/lib/NetworkManager.js:462:5)
      at Request.<anonymous> (node_modules/puppeteer/lib/helper.js:112:23)
      at Page.<anonymous> (src/components/my-component/my-component.e2e.ts:14:13)
      at NetworkManager.<anonymous> (node_modules/puppeteer/lib/Page.js:110:68)
      at NetworkManager._onRequest (node_modules/puppeteer/lib/NetworkManager.js:240:10)
      at NetworkManager._onRequestPaused (node_modules/puppeteer/lib/NetworkManager.js:216:12)
        -- ASYNC --
      at Request.<anonymous> (node_modules/puppeteer/lib/helper.js:111:15)
      at Page.<anonymous> (src/components/my-component/my-component.e2e.ts:14:13)
      at NetworkManager.<anonymous> (node_modules/puppeteer/lib/Page.js:110:68)
      at NetworkManager._onRequest (node_modules/puppeteer/lib/NetworkManager.js:240:10)
      at NetworkManager._onRequestPaused (node_modules/puppeteer/lib/NetworkManager.js:216:12)
      at CDPSession._onMessage (node_modules/puppeteer/lib/Connection.js:200:12)
      at Connection._onMessage (node_modules/puppeteer/lib/Connection.js:112:17)

Test Suites: 1 failed, 1 passed, 2 total
Tests:       1 failed, 4 passed, 5 total
Snapshots:   0 total
Time:        11.445s
Ran all test suites.

Expected behavior:
Should work as it used to.

Steps to reproduce:
See this Github repo for a simple example. Switch to @stencil/core 1.8.11 and it will work.

Related code:

// insert any relevant code here

Other information:

[splitinfinities]

Seconded. We started writing tests for our app and it seems we can't hijack request url's like I expected, using the same methodology above.

[StevenMeyer]

This was "fixed" and then reverted 5 days later. Any plans to fix it @manucorporat ?

[dsappet]

Ran into this today. Any update from the Ionic team?

[splitinfinities]

I'm going to dig deeper into why this got reverted and report back to everyone.

[BHuber-PlanB]

@splitinfinities Any updates?