Uppy: handle xhr missing a 'getResponseHeader' method

Created on 19 Feb 2018 · 4Comments · Source: transloadit/uppy

When using the Aws S3 plugin, the file uploads successfully (is available in our bucket), however an error throws in the console before the UI can update.

We've traced this error to the isXML function inside of the Aws S3 plugin.

function isXml (xhr) {
  const contentType = xhr.getResponseHeader('Content-Type')
  return typeof contentType === 'string' && contentType.toLowerCase() === 'application/xml'
}

instead of being passed an xhr object, this function is passed an xml string in the form:

<PostResponse><Location>https://s3.region.amazonaws.com/my-bucket/subfolder/my-file.pdf</Location><Bucket>my-bucket</Bucket><Key>subfolder-uploads/1519005969144-my-file.pdf</Key><ETag>"e-tag-here"</ETag></PostResponse>

this obviously is missing the getResponseHeader method.

AWS S3 Bug

Source