Zip Files in Self Hosted MITM don't seem to work

[rsmithbotkeeper]

Hello! I am using presigned urls from S3 and downloading a zip file. Locally when I don use the self hosted MITM files this works just fine but in my upper envs the zip files download but are empty/corrupted (as if the data doesn't actually download) the headers are all the same just confused why its not working

the normal non zip files are working fine its just zip files

here is the function

try {
    if (process.env.REACT_APP_NODE_ENV !== 'localhost') streamsaver.mitm = '/static/mitm.html'
    const fileStream = streamsaver.createWriteStream(fileName)
    return fetch(presignedUrl).then((res) => {
      const readableStream = res.body

      if (window.WritableStream && readableStream.pipeTo) {
        return readableStream.pipeTo(fileStream).then()
      }

      window.writer = fileStream.getWriter()

      const reader = res.body.getReader()
      const pump = () => reader.read().then((res) => (res.done ? window.writer.close() : window.writer.write(res.value).then(pump)))

      pump()
    })
  } catch (error) {
    logger.error('error getting download file', error)
  }

this is the error I get when trying to open the zip file

another note im hosting the files in the static folder and both the MITM html and ws.js are in there

[rsmithbotkeeper]

turned out to be a flag was off causing this to be expecting a presigned url but got a blob instead this is all good! sorry!