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Range Error :Maximum call stack size exceeded when calling scrollIntoView on shadow DOM el #7986

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rameshrc opened this issue Jul 15, 2020 · 5 comments · Fixed by #8106 · May be fixed by Omrisnyk/npm-lockfiles#145 or Omrisnyk/npm-lockfiles#164
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Range Error :Maximum call stack size exceeded when calling scrollIntoView on shadow DOM el #7986

rameshrc opened this issue Jul 15, 2020 · 5 comments · Fixed by #8106 · May be fixed by Omrisnyk/npm-lockfiles#145 or Omrisnyk/npm-lockfiles#164
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@chrisbreiding
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pkg/driver This is due to an issue in the packages/driver directory topic: shadow dom Issues when testing shadow dom type: bug

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@rameshrc
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rameshrc commented Jul 15, 2020 •
edited by sync-by-unito bot
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I have application with lit-html web component. When button is clicked on a test bed html, dialog (lit-html web component) appears with ok button. I am trying to hover over it. Since no solutions of hover work for me, i tried out "cypress-nhover": "1.0.0",

cy.get('dialog').get('.ok-button', { includeShadowDom: true }).nhover()

It creates an error

get  .ok-button 
scrollIntoView {log: false}
RangeError
Maximum call stack size exceeded

View stack trace
 Print to console
    at Sizzle (http://localhost:8002/__cypress/runner/cypress_runner.js:85876:27)
    at Function.Sizzle.matches (http://localhost:8002/__cypress/runner/cypress_runner.js:86505:10)
    at Function.jQuery.filter (http://localhost:8002/__cypress/runner/cypress_runner.js:87883:22)
    at winnow (http://localhost:8002/__cypress/runner/cypress_runner.js:87866:22)
    at jQuery.fn.init.is (http://localhost:8002/__cypress/runner/cypress_runner.js:87919:13)
    at findScrollableParent (http://localhost:8002/__cypress/runner/cypress_runner.js:151206:16)
    at findScrollableParent (http://localhost:8002/__cypress/runner/cypress_runner.js:151214:11)
    at findScrollableParent (http://localhost:8002/__cypress/runner/cypress_runner.js:151214:11)
    at findScrollableParent (http://localhost:8002/__cypress/runner/cypress_runner.js:151214:11)
    at findScrollableParent (http://localhost:8002/__cypress/runner/cypress_runner.js:151214:11)
    at findScrollableParent (http://localhost:8002/__cypress/runner/cypress_runner.js:151214:11)
    at findScrollableParent (http://localhost:8002/__cypress/runner/cypress_runner.js:151214:11)
    at findScrollableParent (http://localhost:8002/__cypress/runner/cypress_runner.js:151214:11)
    at findScrollableParent (http://localhost:8002/__cypress/runner/cypress_runner.js:151214:11)
    at findScrollableParent (http://localhost:8002/__cypress/runner/cypress_runner.js:151214:11)
@jennifer-shehane
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Very likely the nhover plugin is not handling shadow DOM. I would suggest following through with the issue you've already opened on their project: avallete/cypress-nhover#14

If you have an example provided using solely Cypress without a plugin that causes an error when trying to trigger events on shadow dom, we'd be happy to look at it with a reproducible example provided.

@avallete
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avallete commented Jul 17, 2020 •
edited
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Hi there,

With the help of @rameshrc I've been able to reproduce the error without cypress-nhover plugin in this MWE.

The issue seems to come from the scrollIntoView command when used with shadowDom.

I will try to investigate on this issue when I have some free time, but if anyone has any suggestion or known related issue I any piece of information would be appreciated.

@jennifer-shehane you may want to reopen this issue.

@avallete avallete mentioned this issue Jul 17, 2020
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@jennifer-shehane
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@avallete Nice! Thanks for providing the example. I can see that a Maximum call stack size exceeded error is thrown when calling scrollIntoView here.

cypres.json

{
  "experimentalShadowDomSupport": true
}

specs.js

it('renders a message on button click', () => {
  cy.visit('index.html')
  cy.get('button', { includeShadowDom: true }).scrollIntoView()
})

index.html

<html>
  <body>
    <element-one></element-one>

    <script type="module">
      import { LitElement, html } from 'https://unpkg.com/lit-element/lit-element.js?module'

      window.customElements.define('element-one', class extends LitElement {
        render() {
          return html`
            <button>Click me</button>
          `
        }
      })
    </script>
  </body>
</html>

Screen Shot 2020-07-20 at 5 18 06 PM

@jennifer-shehane jennifer-shehane added topic: shadow dom Issues when testing shadow dom type: bug pkg/driver This is due to an issue in the packages/driver directory labels Jul 20, 2020
@cypress-bot cypress-bot bot added the stage: ready for work The issue is reproducible and in scope label Jul 20, 2020
@jennifer-shehane jennifer-shehane changed the title Range Error :Maximum call stack size exceeded Range Error :Maximum call stack size exceeded when calling scrollIntoView on shadow DOM el Jul 20, 2020
@chrisbreiding chrisbreiding mentioned this issue Jul 28, 2020
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2 tasks
@cypress-bot cypress-bot bot added stage: work in progress stage: needs review The PR code is done & tested, needs review and removed stage: ready for work The issue is reproducible and in scope stage: work in progress labels Jul 28, 2020
@cypress-bot cypress-bot bot added stage: pending release and removed stage: needs review The PR code is done & tested, needs review labels Aug 18, 2020
@cypress-bot
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cypress-bot bot commented Aug 18, 2020

The code for this is done in cypress-io/cypress#8106, but has yet to be released.
We'll update this issue and reference the changelog when it's released.

@cypress-bot
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cypress-bot bot commented Aug 20, 2020

Released in 5.0.0.

This comment thread has been locked. If you are still experiencing this issue after upgrading to
Cypress v5.0.0, please open a new issue.

@cypress-bot cypress-bot bot locked as resolved and limited conversation to collaborators Aug 20, 2020
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@chrisbreiding chrisbreiding

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pkg/driver This is due to an issue in the packages/driver directory topic: shadow dom Issues when testing shadow dom type: bug
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@chrisbreiding @jennifer-shehane @avallete @rameshrc