[Bug]: Playwright cannot use in webOS TV web inspector

[geun9716]

Version

1.59.1

Steps to reproduce

1. Set webOS TV on local network
2. playwright-cli attach --cdp=http://{TV_IP}:{Inspector Port} --session=tv

Expected behavior

I expect to open web inspector via playwright-cli

Actual behavior

C:\Users\User\AppData\Roaming\nvm\v24.14.1\node_modules\@playwright\cli\node_modules\playwright-core\lib\tools\cli-client\session.js:185
          reject(new Error(message));
                 ^

Error: Protocol error (Browser.setDownloadBehavior): Browser context management is not supported.
Call log:
  - <ws preparing> retrieving websocket url from http://192.168.0.103:2345
  - <ws connecting> ws://192.168.0.103:2345/devtools/browser/0e094d48-d4e5-4b89-8dbd-d9dd0dfa0f00
  - <ws connected> ws://192.168.0.103:2345/devtools/browser/0e094d48-d4e5-4b89-8dbd-d9dd0dfa0f00
  - <ws disconnecting> ws://192.168.0.103:2345/devtools/browser/0e094d48-d4e5-4b89-8dbd-d9dd0dfa0f00
  - <ws disconnected> ws://192.168.0.103:2345/devtools/browser/0e094d48-d4e5-4b89-8dbd-d9dd0dfa0f00 code=1000 reason=
    at Socket.<anonymous> (C:\Users\User\AppData\Roaming\nvm\v24.14.1\node_modules\@playwright\cli\node_modules\playwright-core\lib\tools\cli-client\session.js:185:18)
    at Socket.emit (node:events:508:28)
    at addChunk (node:internal/streams/readable:563:12)
    at readableAddChunkPushByteMode (node:internal/streams/readable:514:3)
    at Readable.push (node:internal/streams/readable:394:5)
    at Pipe.onStreamRead (node:internal/stream_base_commons:189:23)

Additional context

Browser.setDownloadBehavior serves three purposes in normal Playwright operation:

1. Download path control - Routes downloaded files to downloadsPath so Playwright can track them
2. Download events - Enables eventsEnabled so page.waitForEvent('download') works
3. Download blocking - Denies downloads when acceptDownloads: false

These are all relevant for standard desktop browsers, but not applicable to embedded browsers that lack download capabilities entirely (smart TVs, set-top boxes, cast devices, etc.).

Environment

System:
    OS: Windows 11 10.0.26100
    CPU: (18) x64 Intel(R) Core(TM) Ultra 5 125H
    Memory: 5.33 GB / 15.74 GB
  Binaries:
    Node: 24.14.1 - C:\Program Files\nodejs\node.EXE
    npm: 11.11.0 - C:\Program Files\nodejs\npm.CMD
  IDEs:
    VSCode: 1.105.0 - C:\Users\User\AppData\Local\Programs\Microsoft VS Code\bin\code.CMD
  Languages:
    Bash: 4.4.23 - C:\Program Files\Git\usr\bin\bash.EXE
---
  System:
    OS: Linux 6.8 Ubuntu 22.04.5 LTS 22.04.5 LTS (Jammy Jellyfish)
    CPU: (8) x64 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz
    Memory: 7.63 GB / 15.31 GB
    Container: Yes
  Binaries:
    Node: 24.14.0 - ~/.nvm/versions/node/v24.14.0/bin/node
    npm: 11.9.0 - ~/.nvm/versions/node/v24.14.0/bin/npm
    bun: 1.3.12 - ~/.bun/bin/bun
  IDEs:
    VSCode: 1.95.1 - /usr/bin/code
    Claude Code: 2.1.85 - ~/.local/bin/claude
  Languages:
    Bash: 5.1.16 - /usr/bin/bash

[yury-s]

Folding this into #40158.