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fix(form-field): infinite loop when using outline appearance and element isn't in the DOM #11406

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crisbeto
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Prevents the form field with an outline appearance from going into an infinite change detection loop if the form field is active, but isn't in the DOM. The issue comes from the fact that we've got a Promise.resolve inside an AfterContentChecked hook, which will kick off another round of change detection, causing the lifecycle hook to be called again.

Fixes #11329.

…ent isn't in the DOM

Prevents the form field with an `outline` appearance from going into an infinite change detection loop if the form field is active, but isn't in the DOM. The issue comes from the fact that we've got a `Promise.resolve` inside an `AfterContentChecked` hook, which will kick off another round of change detection, causing the lifecycle hook to be called again.

Fixes angular#11329.
@crisbeto crisbeto requested a review from mmalerba as a code owner May 18, 2018 18:42
@googlebot googlebot added the cla: yes PR author has agreed to Google's Contributor License Agreement label May 18, 2018
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fxck commented May 20, 2018

Oh man, I just spent like four hours trying to debug what is happening..

@mmalerba mmalerba added pr: lgtm action: merge The PR is ready for merge by the caretaker target: patch This PR is targeted for the next patch release labels May 21, 2018
@mmalerba mmalerba merged commit e592615 into angular:master May 24, 2018
mmalerba pushed a commit that referenced this pull request May 24, 2018
…ent isn't in the DOM (#11406)

Prevents the form field with an `outline` appearance from going into an infinite change detection loop if the form field is active, but isn't in the DOM. The issue comes from the fact that we've got a `Promise.resolve` inside an `AfterContentChecked` hook, which will kick off another round of change detection, causing the lifecycle hook to be called again.

Fixes #11329.
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mat-form-field appearance=outline causing browser hang
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