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An error occurred while loading the application #7300

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Open the opencode desktop in windows,and show this, what is wrong?
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An error occurred while loading the application.
TypeError: Failed to execute 'set' on 'Headers': String contains non ISO-8859-1 code point.
TypeError: String contains non ISO-8859-1 code point.
at mergeHeaders (http://tauri.localhost/assets/index-Caz8hHfC.js:1705:5435)
at mergeConfigs (http://tauri.localhost/assets/index-Caz8hHfC.js:1705:5072)
at createClient (http://tauri.localhost/assets/index-Caz8hHfC.js:1705:6275)
at createOpencodeClient (http://tauri.localhost/assets/index-Caz8hHfC.js:1705:31179)
at Object.init (http://tauri.localhost/assets/index-Caz8hHfC.js:1728:29767)
at provider (http://tauri.localhost/assets/index-Caz8hHfC.js:2:31974)
at http://tauri.localhost/assets/index-Caz8hHfC.js:2:13805
at untrack (http://tauri.localhost/assets/index-Caz8hHfC.js:2:5161)
at createComponent (http://tauri.localhost/assets/index-Caz8hHfC.js:2:13798)
at get children (http://tauri.localhost/assets/index-Caz8hHfC.js:1728:273264)

github-actions
assigned
adamdotdevin
on Jan 8, 2026
github-actions
added
webRelates to opencode on web / desktop

windows
on Jan 8, 2026
github-actions commented on Jan 8, 2026
github-actionsBot
on Jan 8, 2026 – with GitHub Actions
Contributor
This issue might be a duplicate of existing issues. Please check:

[BUG]: TypeError: Failed to execute 'set' on 'Headers': String contains non ISO-8859-1 code point. #6610: [BUG]: TypeError: Failed to execute 'set' on 'Headers': String contains non ISO-8859-1 code point.

bug: cant open folders on desktop w/ chinese characters in path #6906: bug: cant open folders on desktop w/ chinese characters in path

Windows version of the .exe terminal will report an error when opening a project folder with Chinese characters. #5926: Windows version of the .exe terminal will report an error when opening a project folder with Chinese characters.

WebUI fails with non-ASCII directory names (TypeError: String contains non ISO-8859-1 code point) #6921: WebUI fails with non-ASCII directory names (TypeError: String contains non ISO-8859-1 code point)

All of these issues report the exact same error: TypeError: Failed to execute 'set' on 'Headers': String contains non ISO-8859-1 code point. This appears to be a known issue with non-ASCII characters (especially Chinese characters) in file paths or headers on Windows.

Feel free to ignore if your specific case differs from these.
thdxr commented on Mar 25, 2026
thdxr
on Mar 25, 2026
Member
To stay organized issues are automatically closed after 90 days of no activity. If the issue is still relevant please open a new one.
thdxr
removed
windows

webRelates to opencode on web / desktop
on May 3, 2026
rekram1-node
closed this as not planned on May 22, 2026

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