Chad leads engineering for the Banno platform at Jack Henry & Associates where he builds modern online banking experiences for US banks using web components.

Joined April 2010
2 Photos and videos
Chad Killingsworth retweeted
19 Nov 2024
You can just ship things
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Chad Killingsworth retweeted
Persisted Signals const count = persistedSignal(0, 'count') console.log(`page loaded ${ count.value} times`) codesandbox.io/s/preact-sign…
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Did you know that import maps can be used to solve the waterfall problem and improve caching for your PWA? Our apps are now shipping import maps to production to address this. banno.com/articles/improving…
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After working on a large ES module project that runs 100% in a modern browser without a build first, switching to anything that requires a build step for development makes me groan.
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Over 4 million bank and credit union customers on the @BannoJHA platform can now login to their online banking site using biometrics thanks to #WebAuthN. Can your bank do that?
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#WebAuthN for primary factor logins was an incredibly challenging project. We spent a lot more time talking about the use cases than actually implementing it. You can read more about what makes it difficult at banno.com/articles/biometric…
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Looking forward to the future spec changes which will make the user experience so much better.
With the upcoming end of 3rd party cookies I am seeing a rise in cookieless auth solutions particularly for framed content. These same apps rarely have content security policy. I forsee this going very badly.
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Playing around with account linking and Google Assistant actions. Why on earth is PKCE for OAuth2 not supported? The draft OAuth 2.1 spec requires it.
We're hiring a Dev Advocate position to help us build our Banking as a Service platform: stackoverflow.com/jobs/38741… Also hiring Sr iOS engineers: stackoverflow.com/jobs/38648…

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We are hiring!
17 Apr 2020
We're hiring at Jack Henry / Banno! If you're a Sr Javascript Engineer or Sr Engineering Manager, we'd love to talk to you. DM me with any questions. careers.jackhenry.com/jobs/5… (engineer) careers.jackhenry.com/jobs/5… (manager)
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Want faster builds on windows? Closure Compiler now has a native binary for windows to match Linux and Mac OS. npmjs.com/package/google-clo…

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Like presenting at conferences and interfacing with developers? We're hiring a Developer Advocate to help open up our API for banking. We support hundreds of US financial institutions and almost a million users every month (and growing). stackoverflow.com/jobs/27238…

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Why does almost every transpilation to JS framework target ES5 without type information and say it's "good enough".
Why can we still not mutate cookies in a service worker? I want to offer a proper logout for my PWA while in offline mode which means deleting a HTTPOnly cookie. Setting a new cookie value on a manually constructed response should be allowed!
Chad Killingsworth retweeted
3 Mar 2019
For our team the three largest reductions in production facing issues came from adding the following to our workflow. 1. Adding compile-time type checking for all code. 2. Screenshot based UI testing. 3. Writing 1 end-to-end integration test that runs against staging nightly.
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Chad Killingsworth retweeted
We are happy to announce our latest v5.5.0 release that comes with support for #ShadowDOM and allows you to easily traverse into your web components using WebDriver. Have a look at our new shadow$ and shadow$$ command webdriver.io/docs/api/elemen… #testAllTheThings /cc @polymer

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Anybody know of a recipe for moving service worker cache items from an old cache version to a new one? When you have url versioned resources it seems logical to avoid downloading them again.
At the close of 2018, almost all major browsers support Web Components and Shadow DOM. You know who still doesn't? @LastPass and @1Password. Form elements in shadow dom might as well not exist for password managers.
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Tired of waiting for a release? Closure Compiler now publishes nightly builds to npm: npmjs.com/package/google-clo….

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