[Bug]: Copy to clipboard not working on remote web

[varo6]

Before submitting

• I searched existing issues and did not find a duplicate.
• I included enough detail to reproduce or investigate the problem.

Area

apps/web

Steps to reproduce

1. Host on ubuntu server with the exact command:

npx --yes t3@nightly --host 0.0.0.0 --port 3773 --no-browser

2. Use the web on another LAN device (or tailscale). I'm on Helium Browser.
3. Click on "copy" icon. It is not that big problem because i can just select and ctrl+c, but having the icon but not using it...

Expected behavior

To actually copy the text

Actual behavior

Not copying anything

Impact

Major degradation or frequent failure

Version or commit

0.0.34-nightly.20260818.1128

Environment

Ubuntu server

Logs or stack traces

index-BxYuhVPY.js:105 ClipboardApiUnavailableError: Clipboard API is unavailable while copying update command.
    at lT (index-BxYuhVPY.js:105:60666)
    at index-BxYuhVPY.js:105:61260
    at onClick (index-BxYuhVPY.js:2009:52409)
    at textarea-yn0AzYTN.js:22:122804
    at textarea-yn0AzYTN.js:22:122804
    at Sd (index-BxYuhVPY.js:9:126469)
    at index-BxYuhVPY.js:9:131462
    at Yt (index-BxYuhVPY.js:9:15080)
    at Od (index-BxYuhVPY.js:9:127697)
    at mp (index-BxYuhVPY.js:10:28494)

Screenshots, recordings, or supporting files

No response

Workaround

No response