lib: add `navigator.userAgent` #50200

anonrig · 2023-10-16T17:32:11Z

Follow-up for #47769

cc @nodejs/tsc

github-actions · 2023-10-16T17:33:18Z

The notable-change PRs with changes that should be highlighted in changelogs. label has been added by @anonrig.

Please suggest a text for the release notes if you'd like to include a more detailed summary, then proceed to update the PR description with the text or a link to the notable change suggested text comment.

aduh95 · 2023-10-16T17:49:48Z

Two questions:

Why is that semver-major?
How is it relevant for Node.js?

test/parallel/test-navigator.js

anonrig · 2023-10-16T17:51:34Z

Two questions:

Why is that semver-major?

Some packages might depend on navigator.userAgent to detect if it's not Node.js or not. I don't want to introduce breaking change.

How is it relevant for Node.js?

navigator.userAgent is included in WINTERCG Minimum Common Web Platform API - https://common-min-api.proposal.wintercg.org

meyfa · 2023-10-16T18:10:49Z

The default value contained in this PR is currently different from the value used in native fetch, see: nodejs/undici#2306

There is also some discussion about not including the version number that may be of relevance here.

I think if Node.js exposes a user agent in multiple places, it needs to be the same everywhere.

KhafraDev · 2023-10-16T18:18:49Z

the version should be removed, so either "node.js" or "node". Undici uses "node" so that would make our lives easier (the fetch user-agent and navigator user-agent seem like they should be equal, although I'm not entirely sure).

anonrig · 2023-10-16T18:45:54Z

the version should be removed, so either "node.js" or "node". Undici uses "node" so that would make our lives easier (the fetch user-agent and navigator user-agent seem like they should be equal, although I'm not entirely sure).

Referencing WINTERCG, it's recommended to have a product version with the user agent. I'm more in favor of having the version:

User-Agent      = product *( RWS ( product / comment ) )
product         = token ["/" product-version]
product-version = token

KhafraDev · 2023-10-16T19:08:34Z

There are legitimate security concerns by adding the node version, maybe something like what Chrome is doing would be acceptable? If you don't want to click that they're replacing minor version numbers with zeros (ie. v20.1.1 -> v20.0.0). Is there any discussion about why a version number is required?

doc/api/globals.md

Uzlopak · 2023-10-19T23:52:39Z

I thought about the version.

I am +1 for adding the version.

First of all, the userAgent is in browsers used for requests. We dont expose the version via a http request nor via a http response. Browsers expose this information with their version via request and they dont consider it as a security issue. If it would be a security issue chrome, safari and co would have removed the version information long time ago.

Also comparing to deno and bun, they also expose the version.

So I am 100% hoping that the version gets exposed.

GeoffreyBooth · 2023-10-20T00:08:17Z

Browsers expose this information with their version via request and they dont consider it as a security issue.

Actually Chrome only exposes the major version; they consider exposing the minor/patch versions to be a security concern. See the Chrome/118.0.0.0 in the example above. All of the Chrome 118.x versions return 118.0.0.0 as the version.

But we can do the same, it’s better than not including a version.

KhafraDev · 2023-10-20T00:09:14Z

Chrome did limit it, from the link I posted above:

From Chrome 101 we replaced the minor version number with zeros, e.g. Chrome/101.3.2.1 became Chrome/101.0.0.0.

Firefox also limits some information (windows & macOS versions are capped at 10 and 10.15 respectively, and some architectures don't include any information in their user-agent header). (Source) I'd assume they have plans to limit it further.

KhafraDev · 2023-10-20T00:10:02Z

But we can do the same, it’s better than not including a version.

Yep, this was my proposed alternative.

anonrig · 2023-10-20T00:13:31Z

I'll update the PR with the proposed change.

GeoffreyBooth · 2023-10-20T15:39:06Z

This isn’t semver-major, the semver-major change was adding navigator in the first place. Now that navigator exists we should add all the properties people expect on it.

lib/internal/navigator.js

nodejs-github-bot · 2023-10-20T16:01:41Z

CI: https://ci.nodejs.org/job/node-test-pull-request/55058/

Uzlopak

RSLGTM

styfle · 2023-10-20T17:15:07Z

the fetch user-agent and navigator user-agent seem like they should be equal

💯 agree!

Also something to consider: it looks like there is existing code out there that looks for Node.js string matching.

For example:

consider userAgent missing flexdinesh/browser-or-node#25

mcollina

lgtm

nodejs-github-bot · 2023-10-20T20:22:50Z

Landed in 05a7810

Ethan-Arrowood · 2023-10-20T22:39:34Z

I really think the user-agent keys should match #50200 (comment)

Can we update it ?

KhafraDev · 2023-10-20T23:24:18Z

honestly i'm starting to question the benefit of having navigator whatsoever. I think there should be an agreement on if node should even have it before it's changed again.

PR-URL: #50200 Reviewed-By: Geoffrey Booth <[email protected]> Reviewed-By: Matthew Aitken <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: Vinícius Lourenço Claro Cardoso <[email protected]>

Notable changes: doc: * add H4ad to collaborators (Vinícius Lourenço) #50217 esm: * (SEMVER-MINOR) detect ESM syntax in ambiguous JavaScript (Geoffrey Booth) #50096 fs: * (SEMVER-MINOR) add flush option to appendFile() functions (Colin Ihrig) #50095 lib: * (SEMVER-MINOR) add `navigator.userAgent` (Yagiz Nizipli) #50200 stream: * (SEMVER-MINOR) allow pass stream class to `stream.compose` (Alex Yang) #50187 * call helper function from push and unshift (Raz Luvaton) #50173 PR-URL: #50335

PR-URL: nodejs#50200 Reviewed-By: Geoffrey Booth <[email protected]> Reviewed-By: Matthew Aitken <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: Vinícius Lourenço Claro Cardoso <[email protected]>

Notable changes: doc: * add H4ad to collaborators (Vinícius Lourenço) nodejs#50217 esm: * (SEMVER-MINOR) detect ESM syntax in ambiguous JavaScript (Geoffrey Booth) nodejs#50096 fs: * (SEMVER-MINOR) add flush option to appendFile() functions (Colin Ihrig) nodejs#50095 lib: * (SEMVER-MINOR) add `navigator.userAgent` (Yagiz Nizipli) nodejs#50200 stream: * (SEMVER-MINOR) allow pass stream class to `stream.compose` (Alex Yang) nodejs#50187 * call helper function from push and unshift (Raz Luvaton) nodejs#50173 PR-URL: nodejs#50335

anonrig force-pushed the add-navigator-useragent branch from 1704a23 to 218c1a1 Compare October 16, 2023 17:32

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Uzlopak mentioned this pull request Oct 17, 2023

lib: add navigator.onLine #50224

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tniessen added the experimental Issues and PRs related to experimental features. label Oct 19, 2023

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navigator object breaks projects in v21.0.0 #50269

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GeoffreyBooth added semver-minor PRs that contain new features and should be released in the next minor version. and removed semver-major PRs that contain breaking changes and should be released in the next major version. dont-land-on-v21.x labels Oct 20, 2023

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hex2dec mentioned this pull request Oct 22, 2023

docs: fix webpack repo links that use legacy branch name webpack/webpack.js.org#7036

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v21.1.0 release proposal #50335

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meabed mentioned this pull request Oct 25, 2023

[BUG] Node 21 now has a "navigator" object defined on global scope. motiondivision/motion#2376

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davidfiala mentioned this pull request Oct 30, 2023

node v21.0.0 breaks with xterm: Cannot read properties of undefined (reading 'includes') xtermjs/xterm.js#4850

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plainheart mentioned this pull request Nov 2, 2023

fix(env): fix env detection compatibility in node v21.1.0 ecomfe/zrender#1036

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skyclouds2001 mentioned this pull request Nov 7, 2024

Add nodejs data for Navigator mdn/browser-compat-data#24988

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lib: add `navigator.userAgent` #50200

lib: add `navigator.userAgent` #50200

anonrig commented Oct 16, 2023 •

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lib: add navigator.userAgent #50200

lib: add navigator.userAgent #50200

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lib: add `navigator.userAgent` #50200

lib: add `navigator.userAgent` #50200

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