WhatsApp 支持 media-only 发送并清洗空白负载
用于‘发图/文件时经常因为 message 为空被拒’场景：放宽 send 校验为 text/media 二选一，并在发送链路自动清理前导空行与空白 caption。
GITHUBDiscovered 2026-02-12Author karimnaguib
Prerequisites
- You are using WhatsApp channel and can run a build containing PR #14408.
- You can run channel smoke tests with text/media/caption combinations.
Steps
- Upgrade to build with PR #14408 and restart gateway.
- Send media-only payload (without message text) and confirm it is accepted.
- Send caption-only media payload and verify caption is promoted to message when needed.
- Send text with leading blank lines and confirm normalization removes noisy whitespace.
- Confirm empty payload (no text and no media) is still rejected.
Commands
openclaw gateway statusopenclaw gateway restartVerify
Media-only sends are delivered, whitespace-only text payloads are dropped, and invalid empty sends are rejected.
Caveats
- Behavior is channel-specific; do not assume Telegram/Discord share the same normalization path（需验证）.
- Large media still depends on provider upload limits and network stability.
Source attribution
This tip is aggregated from community/public sources and preserved with attribution.
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