Workers Sending User to 405 Error

addEventListener('fetch', event => {
  event.respondWith(handleRequest(event.request));
});

async function handleRequest(request) {
  if (request.method === 'POST') {
    const ip = request.headers.get('cf-connecting-ip');
    const lastSubmitted = await GROUP_APP.get(ip);
    const currentTime = new Date().getTime();

    // Rate limiting: check if the IP has submitted within the last 3 hours
    if (lastSubmitted && (currentTime - lastSubmitted) < 10800000) { // 3 hours in milliseconds
      return new Response('Rate Limited: You can only submit one application every 3 hours.', { status: 429 });
    }

    // Parse the form data
    const formData = await request.formData();
    const discordUsername = formData.get('discord-username');
    const discordId = formData.get('discord-id');
    const groupCategory = formData.get('group-category');
    const groupName = formData.get('group-name');
    const groupDescription = formData.get('group-description');
    const interestReason = formData.get('interest-reason');
    const experienceDetail = formData.get('previous-experience');
    const planForGroup = formData.get('foster-plan');
    const conflictResolution = formData.get('conflict-resolution');
    const teamHeads = formData.get('initial-heads');
    const finalAgreement = formData.get('final-agreement'); // This will be 'on' if checked

    // Construct the Discord Embed
    const discordData = {
      embeds: [{
        title: "New Group Application",
        color: 3447003, // Blue color
        author: {
          name: "#############",
          icon_url: "https://i.imgur.com/#####"
        },
        fields: [
          { name: "Discord Username", value: discordUsername, inline: true },
          { name: "Discord ID", value: discordId, inline: true },
          { name: "Desired Group Category", value: groupCategory, inline: false },
          { name: "Proposed Group Name", value: groupName, inline: false },
          { name: "Description of Group", value: groupDescription, inline: false },
          { name: "Interest Reason", value: interestReason, inline: false },
          { name: "Experience Detail", value: experienceDetail, inline: false },
          { name: "Plan for Group", value: planForGroup, inline: false },
          { name: "Conflict Resolution", value: conflictResolution, inline: false },
          { name: "Team Heads", value: teamHeads, inline: false },
          { name: "Final Agreement", value: finalAgreement ? 'Yes' : 'No', inline: false }
        ],
        footer: {
          text: "####################"
        }
      }]
    };

    // Send to Discord webhook
    const discordResponse = await fetch('https://discord.com/api/webhooks/###############################', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify(discordData)
    });

    if (discordResponse.ok) {
      // Update the submission time for this IP
      await GROUP_APP.put(ip, currentTime.toString(), { expirationTtl: 10800 }); // 3 hours

      // Redirect to the success page
      return Response.redirect('https://#############.com/application-success', 303);
    } else {
      return new Response('Failed to send message to Discord', { status: 500 });
    }
  } else {
    return new Response('Method not allowed', { status: 405 });
  }
}