Sign in

Eiji Kitamura / えーじ

@agektmr.com
2.4K followers 657 following 1.3K posts

Google Chrome DevRel Identity Tech Lead - Anything about browser identity features: passwords, OTPs, passkeys, identity federation, digital credentials, etc

PostsRepliesMedia
Eiji Kitamura / えーじ @agektmr.com · 2h
ダウンタイム見終わった。めっちゃ面白かったわー。ネタバレは避けてみた方がいいです
010
Eiji Kitamura / えーじ @agektmr.com · 29/09/2026
Connection Allowlists announcement blog post has been published. developer.chrome.com/blog/connect...
developer.chrome.com
Connection allowlists: Secure your web application's network access  |  Blog  |  Chrome for Developers
Chrome 152 introduces connection allowlists, a new security mechanism that lets you create a strict network sandbox for your documents and workers.
0165
Eiji Kitamura / えーじ @agektmr.com · 26/09/2026
生成AIで作ったCM増えたよなあ。まだ一目で分かるからいいけど、そのうち見分けつかなくなりそう。これでどれだけの仕事が奪われたのか、それとも低予算でも高い経済効果があったかと見るべきか。 www.somi.co.jp/news/28300/
somi.co.jp
創味食品
創味食品グループは、プロが納得する業務用製品からご家庭用まで、 美味しさを追求し、食の世界を豊かにする企業です。
040
Eiji Kitamura / えーじ @agektmr.com · 25/09/2026
"Responsive iframes" are now available in Chrome 154, letting an iframe size itself to fit the content of the document it embeds.
241
Reposted by Eiji Kitamura / えーじ
Philip Walton @philipwalton.com · 15/09/2026
If you've ever tried using a new web API in TypeScript, you've probably hit this problem: An API exists. It works in your browser. But TypeScript has no types for it. The reason is a limitation that TS unfortunately applies to its built-in libs. BUT, I've created a relatively simple fix 👇
3419
Eiji Kitamura / えーじ @agektmr.com · 19/09/2026
Modern Web Types philipwalton.com/articles/mod...
philipwalton.com
Modern Web Types
If you've ever written code against a new web API in TypeScript, you've probably seen an error telling you the thing you're using doesn't exist. Turns out, TypeScript intentionally doesn't support all...
040
Eiji Kitamura / えーじ @agektmr.com · 16/09/2026
"Connection Allowlists," a browser-level security mechanism that blocks any outbound network communication not matching your permitted URL patterns, is now available starting in Chrome 152.
111
Eiji Kitamura / えーじ @agektmr.com · 16/09/2026
Overwhelming ads on the web significantly degrade user experience, but objectively measuring the actual load users face in the field has historically been difficult. To address this, four new metrics that visualize real-user ad experiences have been introduced to the Chrome User Experience Report.
110
Eiji Kitamura / えーじ @agektmr.com · 15/09/2026
Importing and exporting passkeys and passwords is now available on Android. This resolves the security risks of legacy plaintext CSV exports and the inability to migrate passkeys across providers through secure, OS-level peer-to-peer data transfer.
1125
Eiji Kitamura / えーじ @agektmr.com · 11/09/2026
Mont-Saint Michel at night
1111
Eiji Kitamura / えーじ @agektmr.com · 11/09/2026
By the way, I'm in Paris now.
170
Eiji Kitamura / えーじ @agektmr.com · 11/09/2026
病院行くのにUber頼んだけど、指定位置よりちょっと離れたところに着いて「こっちに来い」というので「怪我してるからお前が来い」と言ったらキャンセルされた。ひどい…
120
Eiji Kitamura / えーじ @agektmr.com · 10/09/2026
旅行中にも関わらずアキレス腱切れた
3120
Eiji Kitamura / えーじ @agektmr.com · 10/09/2026
まあでも実際のところiPhone Duoを買うメリットて、iPhoneとiPad miniをひとつにまとめられるという以外ないよな
042
Eiji Kitamura / えーじ @agektmr.com · 09/09/2026
Foldable iPhone 出たら買おうかなと思ってたけど、お値段と重量見たら萎えちゃった
050
Reposted by Eiji Kitamura / えーじ
Ricky Mondello @rmondello.com · 08/09/2026
New post on my blog about switching password managers in 2026! It covers: - why your iPhone or iPad, and not your Mac, might be the place to start your switch - the recent controversy in password management and some thoughts on values - and more! rmondello.com/2026/09/07/s...
rmondello.com
Switching Password Managers in 2026
Important Note: Although I work at Apple in the password management and app/website authentication spaces, in this post I am speaking only for myself, personally. There is no “news” in this post or any kind of “inside scoop”. Please do share this post, but if I see “Apple’s Ricky Mondello” anywhere, I’ll be sad. My [...]
513248
Eiji Kitamura / えーじ @agektmr.com · 08/09/2026
エールフランスでシャルル・ド・ゴール空港経由でバルセロナに来てるんだけど、娘のバゲッジがロストして、翌日になってもどこに行ったか分からないとか言ってて、マジかよとなってる。同じツアーの人たちも複数ロストしてて絶望。どうしてくれるんだこれ。
1110
Eiji Kitamura / えーじ @agektmr.com · 06/09/2026
今夜から海外旅行なんだけど、この調子だと欠航かなあ…
160
Eiji Kitamura / えーじ @agektmr.com · 02/09/2026
WebAuthn L3 is now officially a W3C Recommendation. A major milestone in establishing passkeys as mainstream web infrastructure.
w3.org
Web Authentication: An API for accessing Public Key Credentials Level 3 is now a W3C Recommendation
This specification defines an API enabling the creation and use of strong, attested, scoped, public key-based credentials by web applications, for the purpose of strongly authenticating users.
183
Eiji Kitamura / えーじ @agektmr.com · 01/09/2026
To deliver web platform advancements, performance improvements, and bug fixes faster, Chrome's release cycle has moved to every two weeks starting this month.
developer.chrome.com
Get features faster with Chrome's two-week release cycle  |  Blog  |  Chrome for Developers
From September 2026 Chrome releases will be every two weeks.
162
Reposted by Eiji Kitamura / えーじ
Eiji Kitamura / えーじ @agektmr.com · 28/08/2026
By setting up `https://<your-domain>/.well-known/change-password` to redirect (302/303/307) to your actual password update page, Chrome, Safari, and major password managers can guide users directly to your change password form.
15611
Eiji Kitamura / えーじ @agektmr.com · 28/08/2026
By setting up `https://<your-domain>/.well-known/change-password` to redirect (302/303/307) to your actual password update page, Chrome, Safari, and major password managers can guide users directly to your change password form.
15611
Eiji Kitamura / えーじ @agektmr.com · 24/08/2026
やはり今年の夏は、暑さという意味では去年と比べてだいぶ過ごしやすいなあ
060
Eiji Kitamura / えーじ @agektmr.com · 19/08/2026
Notifications for PWAs on macOS are getting a major upgrade starting in Chrome 152! Notifications will now be natively attributed to the PWA itself—displaying the app's own name and custom icon instead of "Google Chrome"—and will integrate seamlessly with macOS System Settings and Focus modes.
Before Chrome 152After Chrome 152
1192
Reposted by Eiji Kitamura / えーじ
Bramus @bram.us · 28/07/2026
Nice to see this being worked on 🤩 You can already use `<input type="checkbox" switch>` today BTW, thanks to this polyfill by my colleague @tomayac.com: github.com/tomayac/inpu...
github.com
GitHub - tomayac/input-switch-polyfill: A polyfill for <input type="checkbox" switch>
A polyfill for <input type="checkbox" switch>. Contribute to tomayac/input-switch-polyfill development by creating an account on GitHub.
1375
Eiji Kitamura / えーじ @agektmr.com · 17/08/2026
The Email Verification Protocol has some updates! The Email Verification origin trial (introduced in Chrome 150) offers a progressive enhancement that verifies email ownership directly with the email provider through the browser—eliminating the need to send an outbound email altogether.
2112
Eiji Kitamura / えーじ @agektmr.com · 04/08/2026
超絶かっこいい曲見つけたと思ったんだけど、15年前の曲で、チャンネル登録者数が未だに5500で衝撃を受けた。そんなに長くやっててこの数字ってありえる!? youtu.be/7s421z0nlIs
youtu.be
Heavenstamp - Stand by You
YouTube video by HeavenstampOfficial
130
Reposted by Eiji Kitamura / えーじ
Eiji Kitamura / えーじ @agektmr.com · 20/07/2026
Introducing passkey skills— The Chrome team launched an early preview of Modern Web Guidance at Google I/O — a tool that injects web development best practices directly into your coding agents as skills.
164
Eiji Kitamura / えーじ @agektmr.com · 20/07/2026
Introducing passkey skills— The Chrome team launched an early preview of Modern Web Guidance at Google I/O — a tool that injects web development best practices directly into your coding agents as skills.
164
Reposted by Eiji Kitamura / えーじ
Rowan Merewood @rowan.fyi · 15/07/2026
Detailed NHS x #Passkeys case study exploring the mechanisms and UX of upgrading & managing Passkeys with quantified business metrics. And the NHS gets to save money! Really illustrates a mature point in both the API capabilities plus user acceptance. Can we start that dead pool for passwords yet?
developer.chrome.com
How NHS England improved sign-in times and saved over £1m with passkeys  |  Blog  |  Chrome for Developers
Learn how NHS England, working with Hippo, implemented passkeys to improve sign-in times, reduce transaction costs, and enhance security.
0102
Eiji Kitamura / えーじ @agektmr.com · 15/07/2026
トランプがやったことでこれまでで唯一ありがたいと思える政策だ。 www.nikkei.com/article/DGXZ...
nikkei.com
米下院「サマータイム通年化」法案可決 トランプ氏が後押し - 日本経済新聞
【ワシントン=共同】米下院は14日、毎年3〜11月に実施される夏時間(サマータイム)を通年化する法案を賛成多数で可決した。トランプ大統領はかねて年2回の時間の切り替えは「無駄」だと主張し、法案通過を後押ししていた。米メディアによると、上院で可決されるかどうかは不透明。米国の大半の地域では3月の第2日曜日に時計を1時間早めて夏時間にし、11月の第1日曜日に標準時間に
281
Eiji Kitamura / えーじ @agektmr.com · 14/07/2026
やはり気のせいで効いてるような効いてないようなコリコランより、オムロンの低周波肩叩き器の方が実感があって良い。
000
Eiji Kitamura / えーじ @agektmr.com · 13/07/2026
If you're running the same account system across multiple domains, and placing separate login forms on each one, you are frustrating your users more than you realize:
web.dev
Defragment cross-domain logins  |  web.dev
Learn how to use architectural standards and solutions (such as metadata, cross-origin iframes, identity federation, and subdomain consolidation) to resolve cross-domain identity fragmentation and del...
110
Eiji Kitamura / えーじ @agektmr.com · 12/07/2026
マイケル・ジャクソンの映画観に来たんだけど、おっさんおばさんばかりでもおかしくないのに、20歳前後の子が圧倒的に多い
050
Reposted by Eiji Kitamura / えーじ
Eiji Kitamura / えーじ @agektmr.com · 09/07/2026
Personally, the most exciting auth-related feature since passkeys: Chrome just announced an origin trial for the Email Verification Protocol (EVP).
1135
Eiji Kitamura / えーじ @agektmr.com · 09/07/2026
ガス人間、めちゃくちゃ面白かった。今年見た中では最高。テーマ的にB級だろうと思って見始めたんだけど、豪華な俳優さんたちだけじゃなく、みんな演技に気合いが入りまくってて、切れまくってて、グイグイ引っ張られた。特にもっくん息子のUTAくんはイケボだし、演技に幅あるし、ファンになってしまった。
030
Reposted by Eiji Kitamura / えーじ
Rowan Merewood @rowan.fyi · 09/07/2026
Ever been annoyed by a "confirm your email" message with a flaky magic link or OTP with clunky copy+paste, if the email even arrives‽ Optimistically, 20-30% of those emails* are never seen. We can fix that! If you have *any* email collection on your site, I'd love to see you try it & give feedback.
developer.chrome.com
Test the Email Verification Protocol with an origin trial  |  Blog  |  Chrome for Developers
Test the Email Verification Protocol with the origin trial available from Chrome 150.
33015
Eiji Kitamura / えーじ @agektmr.com · 09/07/2026
Personally, the most exciting auth-related feature since passkeys: Chrome just announced an origin trial for the Email Verification Protocol (EVP).
1135
Reposted by Eiji Kitamura / えーじ
Chrome for Developers @developer.chrome.com · 07/07/2026
With #IOConnect Bengaluru around the corner let's reminisce a bit and see where our Chrome team went off to after I/O back in May 🥲
061
Reposted by Eiji Kitamura / えーじ
Sam Goto @sgo.to · 02/07/2026
Facebook just recently exposed themselves as a FedCM IdP!! developers.facebook.com/documentatio... I think this is pretty awesome, including to the atproto ecosystem, because it one more step towards making IdPs interoperate with one another!
developers.facebook.com
Facebook Login with FedCM
2123
Eiji Kitamura / えーじ @agektmr.com · 27/06/2026
台風が来るからとせっかく予定キャンセルしたのに、ほぼ無風だし雨もほぼ降ってない
020
Eiji Kitamura / えーじ @agektmr.com · 22/06/2026
Sign-in success jumped from ~70% to >99%, already in production across 50+ regional domains. Passkey adoption often faces two pain points: users abandoning at creation prompts, and sign-in failures from device-server credential drift.
112
Eiji Kitamura / えーじ @agektmr.com · 20/06/2026
Music Awards Japanの最後にBOOM BOOM SATELLITESが流れてて「なぜ!?」と思ってたんだけど、ライブしたのか…!メンバーが片方亡くなったと聞いてたけど、これは熱すぎる。 youtu.be/z2CinFcpbME
youtu.be
THE SPELLBOUND × BOOM BOOM SATELLITES - KICK IT OUT | MUSIC AWARDS JAPAN 2026
YouTube video by MUSIC AWARDS JAPAN / CEIPA
040
Eiji Kitamura / えーじ @agektmr.com · 13/06/2026
テレビの音楽番組は芸能事務所のテリトリー争いですごくつまらないんだけど、MUSIC AWARD JAPANはガチでいいな。ついにこういう時代が来たかって感じ。どの賞も納得感がある。
050
Eiji Kitamura / えーじ @agektmr.com · 12/06/2026
アメリカは週末が近付くと和平合意と言い出して、週が始まると暴れ出すな。いつまで続けるんだろう?
160
Eiji Kitamura / えーじ @agektmr.com · 11/06/2026
面白い。Blueskyと同じアカウントでログインできた。いわゆるSNSのフェデレーションか。元々こういう構想だったと思うけど、実際に見るとよく分からん。同じアカウントでMastodonの別ノードにログインするような感じ?
150
Reposted by Eiji Kitamura / えーじ
草野貴之 (Kusano Takayuki) @tkusano.jp · 11/06/2026
Blueskyのインフラのヨーロッパ版的なものを運営しようというプロジェクト、Eurosky が、Bluesky公式アプリの改造版的なものを立ち上げたようです。 mu.social です。Blueskyユーザーでも別途アカウントを作らなくてもそのままログインできます。 投稿が5分以内に編集できるなどの機能が追加されてたり、ニュースフィードが最初から組み込まれてたり、認証バッジがBluesky公式ではないところから付与されてたりと、違いがあります。
mu.social
mu
211169
Eiji Kitamura / えーじ @agektmr.com · 10/06/2026
朝15万だった航空券が夜28万になってた。そんなことある!?
010
Eiji Kitamura / えーじ @agektmr.com · 07/06/2026
Not a bad internet speed bump.
060
Eiji Kitamura / えーじ @agektmr.com · 01/06/2026
I'm in Singapore this week. It's so humid just like summer in Japan!
070