Problem/Motivation

It appears Google implemented a network change related to the expect header. Submissions to the chatbot including images began failing this morning with:

417 Expectation Failed response:
<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"/><title>Sorry...</title><style> body { fo (truncated...)

Proposed resolution

Add 'expect' => FALSE, to the request options array.

CommentFileSizeAuthor
#2 expectation-failed-3583566-2.patch466 bytescameron prince

Issue fork ai_provider_google_vertex-3583566

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cameron prince created an issue. See original summary.

cameron prince’s picture

cameron prince commented
Issue summary: View changes
StatusFileSize
new expectation-failed-3583566-2.patch466 bytes
dmundra’s picture

dmundra
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Primary language English
commented
Status: Active » Needs work

Hey @cameron prince can you create a MR on this and also steps to recreate it? I tested it with /admin/config/ai/explorers/chat_generator and a tiny image and I got a response from the Gemini 2.5 Flash model

dmundra’s picture

dmundra
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Primary language English
commented
Status: Needs work » Active

Okay I was able to recreate the 417 Expectation Failed with a 2.2 MB file and using the Chat Generation Explorer (/admin/config/ai/explorers/chat_generator). Trying the patch now.

dmundra’s picture

dmundra
he/him
Primary language English
commented
Status: Active » Reviewed & tested by the community

Patched worked with the larger file test.

cameron prince opened merge request !22

aolivera’s picture

aolivera commented
Status: Reviewed & tested by the community » Fixed

Thanks @cameron_prince for reporting this and submitting the fix, and @dmundra for testing and confirming the patch resolves the 417 error with larger image files.

Merged MR !22 into 2.x.

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