fetch for Anthropic Claude3 never returns

    const prompt = "My large prompt ...." // small prompt like "Generate a python program to print numbers from 1 to 100" works
    const messages = [
        {
            role: "user",
            content: [{
                type: "text",
                text: prompt
            }]
        }
    ]
    const data = {
        "model": "claude-3-sonnet-20240229",
        "max_tokens": 4096,
        "messages": messages
    }
    const fetchData = await fetch("https://api.anthropic.com/v1/messages",
        {
            method: 'POST',
            headers: {
                'accept': 'application/json',
                'Content-Type': 'application/json',
                'anthropic-version': '2023-06-01',
                'x-api-key': env.ANTHROPIC_API_KEY   
            },  
            body: JSON.stringify(data)
        }
    )

    const prompt = "My large prompt ...." // small prompt like "Generate a python program to print numbers from 1 to 100" works
    const messages = [
        {
            role: "user",
            content: [{
                type: "text",
                text: prompt
            }]
        }
    ]
    const data = {
        "model": "claude-3-sonnet-20240229",
        "max_tokens": 4096,
        "messages": messages
    }
    const fetchData = await fetch("https://api.anthropic.com/v1/messages",
        {
            method: 'POST',
            headers: {
                'accept': 'application/json',
                'Content-Type': 'application/json',
                'anthropic-version': '2023-06-01',
                'x-api-key': env.ANTHROPIC_API_KEY   
            },  
            body: JSON.stringify(data)
        }
    )