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web: question form renders no options on Android phone viewport - Submit shown with nothing selectable #52264
Description
Description
The Question tool form cannot be answered from a phone in the V2 web app. On a phone-sized viewport the card renders the prompt and the Dismiss / Submit Ctrl+Enter row, but the option list between them is unreachable: the options are present in the card, the card does not scroll, and there is no way to bring the hidden options into view. Result: Submit is offered with nothing selectable, so the agent cannot be answered from the phone at all.
Client: Firefox for Android reaching a self-hosted instance over Tailscale Serve (https://<host>.ts.net proxying the loopback server port). Server: Windows 11, OpenCode 2.0.20.
This is the same failure class as #51770 (options + controls unreachable on a mobile viewport, filed against 2.0.18 at 393x852, with fix PR #51771 open and unmerged as of today) and the recurring family of earlier reports #25261, #34411, #22282, #23730, #24109, #38286. Filing separately for the Android/Firefox remote-instance data point: #51771's author verified in Chromium and WebKit, and this still reproduces on 2.0.20 in a real mobile browser against a remote instance. If #51771 already covers this path, close as duplicate and I will track it there.
Plugins
None involved — built-in question form. The instance does have MCP servers configured.
OpenCode version
2.0.20
Steps to reproduce
- Run the OpenCode server on the desktop and expose it to another device (
tailscale serve, proxying the loopback server port); open the*.ts.netURL in Firefox for Android. - Have the agent call the Question tool with a normal multi-option question (options each carrying a description).
- On the phone, the card shows the prompt, then Dismiss / Submit. The options are rendered inside the card but cannot be scrolled to or tapped, so the question cannot be answered.
Screenshot and/or share link
Phone capture being attached to this issue by the reporter: "1 of 1 questions", the prompt text, then Dismiss / Submit with the option list unreachable between them.
Operating System
Server: Windows 11. Client: Android (Motorola Edge 70), Firefox for Android.
Terminal
Browser, not a terminal.
Activity
github-actions commentedon Sep 30, 2026
This issue might be related to existing reports about the mobile Question dialog. Please check:
Bearmancer commentedon Oct 2, 2026
Duplicate of #51770.
Both reports describe the same failure on the V2 mobile question card: the option list is unreachable because the card content does not scroll, so the question cannot be answered. Here the Dismiss/Submit row stays visible while the options are hidden; in #51770 the footer is pushed off screen instead. In both cases the root cause is the same height calculation and scroll container, and #51771 (open, closes #51770) addresses it by measuring the available session-panel height on mobile and scrolling the question text and options together.
One remaining difference is that this was reproduced on Firefox for Android through a remote HTTPS instance, while #51771 was verified in Chromium and WebKit. If it still reproduces on a build that includes #51771, I will reopen or comment on #51770 with the result. Closing in favor of #51770.