(zone.js) Promise.try is undefined

Which @angular/* package(s) are the source of the bug?

zone.js

Is this a regression?

No

Description

In 2025 the static method Promise.try recieved wide support in browsers.

ZoneAwarePromise does not implement it.

Please provide a link to a minimal reproduction of the bug

No response

Please provide the exception or error you saw

Uncaught TypeError: Promise.try is not a function

Please provide the environment you discovered this bug in (run `ng version`)

_                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
                |___/


Angular CLI       : 21.1.4
Angular           : 21.1.4
Node.js           : 24.13.0
Package Manager   : pnpm 10.29.3
Operating System  : win32 x64

┌───────────────────────────────────┬───────────────────┬───────────────────┐
│ Package                           │ Installed Version │ Requested Version │
├───────────────────────────────────┼───────────────────┼───────────────────┤
│ @angular/animations               │ 21.1.4            │ ^21.1.4           │
│ @angular/build                    │ 21.1.4            │ ^21.1.4           │
│ @angular/cdk                      │ 21.1.4            │ ^21.1.4           │
│ @angular/cli                      │ 21.1.4            │ ~21.1.4           │
│ @angular/common                   │ 21.1.4            │ ^21.1.4           │
│ @angular/compiler                 │ 21.1.4            │ ^21.1.4           │
│ @angular/compiler-cli             │ 21.1.4            │ ^21.1.4           │
│ @angular/core                     │ 21.1.4            │ ^21.1.4           │
│ @angular/forms                    │ 21.1.4            │ ^21.1.4           │
│ @angular/language-service         │ 21.1.4            │ ^21.1.4           │
│ @angular/localize                 │ 21.1.4            │ ^21.1.4           │
│ @angular/material                 │ 21.1.4            │ ^21.1.4           │
│ @angular/material-moment-adapter  │ 21.1.4            │ ^21.1.4           │
│ @angular/platform-browser         │ 21.1.4            │ ^21.1.4           │
│ @angular/platform-browser-dynamic │ 21.1.4            │ ^21.1.4           │
│ @angular/router                   │ 21.1.4            │ ^21.1.4           │
│ @angular/youtube-player           │ 21.1.4            │ ^21.1.4           │
│ rxjs                              │ 7.8.2             │ ^7.8.2            │
│ typescript                        │ 5.9.3             │ ~5.9.3            │
│ zone.js                           │ 0.16.0            │ ~0.16.0           │
└───────────────────────────────────┴───────────────────┴───────────────────┘

Anything else?

No response

If I remember correctly, zone.js has entered maintenance mode, so it will no longer receive any features or support from the new browser APIs.

zone.js is indeed in maintenance mode and likely won't receive new patchs.

https://github.com/angular/angular/blob/main/packages/zone.js/README.md

While it won’t receive new patches, I don’t think it should destructively make APIs unavailable. We should discuss providing an unpatched version on the existing promise patch

fix(zone.js): support passthrough of Promise.try API

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(zone.js) Promise.try is undefined #67057

Which @angular/* package(s) are the source of the bug?

Is this a regression?

Description

Please provide a link to a minimal reproduction of the bug

Please provide the exception or error you saw

Please provide the environment you discovered this bug in (run `ng version`)

Anything else?

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(zone.js) Promise.try is undefined #67057

Description

Which @angular/* package(s) are the source of the bug?

Is this a regression?

Description

Please provide a link to a minimal reproduction of the bug

Please provide the exception or error you saw

Please provide the environment you discovered this bug in (run ng version)

Anything else?

Activity

SkyZeroZx commented on Feb 13, 2026

JeanMeche commented on Feb 13, 2026

atscott commented on Feb 13, 2026

angular-automatic-lock-bot commented on Mar 20, 2026

Metadata

Metadata

Assignees

Labels

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Please provide the environment you discovered this bug in (run `ng version`)