TypeError: e.diffs.map is not a function when reopening old browser session

Bug Description

When trying to reopen an old OpenCode web browser window, I get the following JavaScript error:

TypeError: e.diffs.map is not a function
    at Object.fn (http://localhost:4096/assets/session-BdJIdAn0.js:19:50326)
    at H2 (http://localhost:4096/assets/index-Dr5k_2Nz.js:2:6835)
    at $l (http://localhost:4096/assets/index-Dr5k_2Nz.js:2:6592)
    at Df (http://localhost:4096/assets/index-Dr5k_2Nz.js:2:8033)
    at Q7 (http://localhost:4096/assets/index-Dr5k_2Nz.js:2:8914)
    at xO (http://localhost:4096/assets/index-Dr5k_2Nz.js:2:8286)
    at Ir (http://localhost:4096/assets/index-Dr5k_2Nz.js:2:8218)
    at et (http://localhost:4096/assets/index-Dr5k_2Nz.js:2:3989)
    at o (http://localhost:4096/assets/index-Dr5k_2Nz.js:2279:6842)
    at http://localhost:4096/assets/session-BdJIdAn0.js:21:39236

Steps to Reproduce

Open OpenCode web interface
Try to reopen an old browser session/window

Environment

OpenCode version: 1.2.27
Browser: Happens in Brave, Chrome, Edge
OS: Windows 11

Additional Context

The error suggests that e.diffs is not an array (or is undefined) when the map function is called. This may be related to session state corruption or an issue with how session data is being deserialized.

I’ve encountered this issue as well. I’m currently on the latest version (1.3.2), and the error persists even after switching computers or browsers; the only time it stops is when I switch to the mobile version.

+1

@rekram1-node

@rekram1-node Can you offer some support for this?

me too

+1

I have same problem either

+1

+1，我使用的web端，同样的问题。

The bug should be completely gone whenever a new release is out

Close the sidebar through application tab: The bug is caused by review sidebar, so if we close that sidebar it works again.

Open Applications tab in chrome dev console

Under storage, click 'local storage' and then the localhost / port on which opencode runs (e.g. http://127.0.0.1:4096)

Find key 'opencode.global.dat:layout' ,then for value, in the json set panelOpened to false for the review key, so
"review":{"diffStyle":"split","panelOpened":false}

Reload page

PS: if you cannot find 'opencode.global.dat:layout'. I think the error page removes it sometimes. Then change another key into it and set it to: {"sidebar":{"opened":false,"width":344,"workspaces":{},"workspacesDefault":false},"terminal":{"height":280,"opened":false},"review":{"diffStyle":"split","panelOpened":true},"fileTree":{"opened":false,"width":200,"tab":"all"},"session":{"width":600},"mobileSidebar":{"opened":false},"sessionTabs":{"session_id_left_out_for_github_share":{"all":[],"active":"review"},"session_id_left_out_for_github_share":{"all":[],"active":"review"}},"sessionView":{},"handoff":{}}

I noticed the same behavior. If on the left side there is a project shown in the vertical project bar, the error appears.

更换更老的版本可以解决嘛？

更换更老的版本可以解决嘛？

no

+1

+1

hey sorry for this. getting fix out now

the reason we hadn't bundled the webapp into the cli was because we were waiting on our move to node to be complete. we didn't realize many people were using it and the version drift issues are impacting a lot of people

we're going to figure out bundling today so this doesn't keep happening

fix(app): add defensive Array.isArray checks for session diffs

fix: add defensive checks for undefined values in diff handling

fixed now - bundling going out in next release

Fixed by #19299 - This issue was caused by version drift between the web UI assets served from the CDN and the local server. Version 1.3.3 is going out now and embeds the WebUI directly in the binary, eliminating any version drift between the server and web UI.

Closing as fixed by #19299

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TypeError: e.diffs.map is not a function when reopening old browser session #19217

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TypeError: e.diffs.map is not a function when reopening old browser session #19217

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