[pull] main from danny-avila:main#72
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pull[bot] merged 1 commit intoinnFactory:mainfrom Apr 30, 2026
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…oads (#124) The Anthropic API rejects assistant content that includes a text block whose text is whitespace-only (`'messages: text content blocks must contain non-whitespace text'`). Web search responses can include such blocks alongside `server_tool_use` and `web_search_tool_result`, so on follow-up turns the request fails. The existing filter in `_formatContent` only stripped strict empty strings (`text === ''`), letting blocks with `' '`, `'\n'`, `'\t'`, etc. through. Broaden the check to drop any text block whose trimmed content is empty. Reported in LibreChat discussion #12806; the user observed it consistently when web search runs and either custom instructions are set or prompt caching is off (i.e. when `addCacheControl` is gated off).
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