IDEFICS works with image URLs but not "upload image"

Hi there,

I am hosting IDEFICS on TGI locally and hitting it via Chat-UI. When I go to a URL, it is able to correctly work with images, as seen here:

However, when I use the "upload image" feature, or the drag and drop, it looks like it is ignoring the image:

Here is my model config (using the latest main branch of chat-ui 0.7.0):
` {
"name": "HuggingFaceM4/idefics-9b-instruct",
"endpoints":[{"type":"tgi","url":"http://INTERNAL URL:/generate_stream"}],
"multimodal" : true,
"description": "IDEFICS is the new multimodal model by Hugging Face.",
"preprompt": "",
"chatPromptTemplate" : "{{#each messages}}{{#ifUser}}User: {{content}}{{/ifUser}}\nAssistant: {{#ifAssistant}}{{content}}\n{{/ifAssistant}}{{/each}}",
"parameters": {
"temperature": 0.1,
"top_p": 0.95,
"repetition_penalty": 1.2,
"top_k": 12,
"truncate": 1000,
"max_new_tokens": 1024,
"stop": ["", "User:", "\nUser:"]
}
}`

And here is my TGI command args from docker compose (using 1.3.4 container for TGI):
` --sharded true --num-shard 2 --dtype float16 --model-id HuggingFaceM4/idefics-9b-instruct --max-total-tokens 2048 --max-input-length 1000 --max-batch-prefill-tokens 2048`

Here is the [image URL](https://commons.wikimedia.org/wiki/Dog#/media/File:Flat_Coated_Retriever_-_black.jpg) for reference.

A gigantic thank you for putting together such wonderful tools!! And thank you in advance for your help.