I’m using to host a complex editor (React + react-hook-form) and trying to wire shopify.saveBar for unsaved-changes UX. I’ve hit three issues I haven’t been able to work around - would appreciate guidance or confirmation if these are known limitations. Setup // inside the s-app-window content r…

Hi markkkkas - thanks for the reports. We’re looking into this now

@markkkkas - I’ve reproduced all three issues and wanted to share what I found: Issue 1: No “Leave page?” prompt when closing s-app-window We’re tracking this for a fix. This is definitely a bug, it should prevent closing the window. Issue 2: data-save-bar doesn’t detect programmatic changes The…

we’re also seeing this popup on chrome when clicking save on the save bar. This issue has regressed multiple times as well now. [image]

+1 here, prompting to save changes when closing the app window would be a life saver here

App window's save bar doesn't prompt before close, and data-save-bar / button props have gaps

App Bridge

JordanFinners June 16, 2026, 9:36am 4

Hey @Mitch_Lillie , it looks like issue 2 has regressed as this doesn’t seem to work anymore

[Bug]: Web Components Form

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App window's save bar doesn't prompt before close, and data-save-bar / button props have gaps

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