openclaw - 💡(How to fix) Fix Bug: dist/export-html/template.js content.filter crash — missing Array.isArray guard in dist bundle

Summary

The content.filter is not a function TypeError has been partially fixed upstream in pi-agent-core/dist/agent-loop.js and pi-coding-agent/dist/core/export-html/template.js (both now have Array.isArray() guards). However, the dist bundle dist/export-html/template.js still lacks this guard, leaving the crash vector open.

Reproduction

In dist/export-html/template.js at the msg.content.filter() call site (line ~1477 in v2026.5.28), if msg.content is undefined, null, or a non-array value, the following crash occurs:

TypeError: msg.content.filter is not a function

Root Cause

The source files in pi-agent-core and pi-coding-agent packages were patched with Array.isArray() guards, but the bundled dist artifact dist/export-html/template.js was not regenerated with the same fix, or the bundle copies from an older unpatched source.

Suggested Fix

Apply the same Array.isArray() guard pattern used in pi-coding-agent/dist/core/export-html/template.js:

// Before (vulnerable):
msg.content.filter((c) => c.type === "toolCall")

// After (safe):
(Array.isArray(msg.content) ? msg.content : []).filter((c) => c.type === "toolCall")

Environment

• OpenClaw version: 2026.5.28 (67ddc1a)
• File: dist/export-html/template.js (line ~1477)
• Related: #52903 (duplicate user messages on fallback retry — same crash class)

Workaround

Users can manually patch the dist bundle file or use the community safe-upgrade script that applies this guard automatically.