Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

Zone.js does not support native async/await in ES2017 warning

See original GitHub issue

📚 Docs or angular.io bug report

Description

We’re told to update our target to es2018, so, after doing that, I’m getting a ton of

WARNING: Zone.js does not support native async/await in ES2017.
    These blocks are not intercepted by zone.js and will not triggering change detection.
    See: https://github.com/angular/zone.js/pull/1140 for more information.

…when I run tests and when I serve the application.

Reproduction Steps**

Upgrade to Angular v10, update target in tsconfig.base.json to es2018

Expected vs Actual Behavior**

Expected behavior would probably be to not see any sort of warning after having followed official instructions. In reality, I’m getting a warning with a linked PR to an archived repo. We could provide a better experience to our users.

Issue Analytics

State:
Created 3 years ago
Reactions:4
Comments:11 (6 by maintainers)

Top GitHub Comments

3reactions

alan-agius4commented, Jun 25, 2020

Issue for zone.js not supporting async/await in ES2017 can be found here: https://github.com/angular/angular/issues/31730

1reaction

romanryasne2commented, Jun 26, 2020

How to suppress this warning? It doesn’t make sense to me, since I don’t use zone.js at all.

Top Results From Across the Web

should I care about "Zone.js does not support native async ...

WARNING : Zone.js does not support native async/await in ES2017. These blocks are not intercepted by zone.js and will not triggering change ...

To be clear, Zone.js does support async-await when ...

One step closer a to zone-less Angular. ... To be clear, Zone.js does support async-await when downtranspiled to anything lower than ES2017.

angular/angular - Gitter

WARNING : Zone.js does not support native async/await in ES2017. so in ES2015 it may does?

Loading | Angular - EJ 2 Forums - Syncfusion

WARNING : Zone.js does not support native async/await in ES2017. These blocks are not intercepted by zone.js and will not triggering change ...

await - JavaScript - MDN Web Docs

Because await is only valid inside async functions and modules, which themselves are asynchronous and return promises, the await expression never blocks the ......