title: Request too large error making a request to App Engine
body: <p>I have an app on App Engine Flex using the Python 3 runtime.  I get the base64 encoded byte string of a resume file from Google Storage with the code below.</p>
  <pre><code>storage_client = storage.Client(project=[MYPROJECT])
  bucket = storage_client.get_bucket([MYBUCKET])
  blob = bucket.blob([MYKEY])
  resume_file = blob.download_as_string()
  
  resume_file = str(base64.b64encode(resume_file))[2:-1]
  </code></pre>
  <p>I send that as part of my request parameters like so:</p>
  <pre><code>headers = {'Authorization': 'Bearer {}'.format(signed_jwt),
             'content-type': 'application/json'}
  
  params = {'inputtype': 'file',
             'resume': resume_file}
      
  response = requests.get(HOST, headers=headers, params=params)
  </code></pre>
  <p>However, I get the following error:</p>
  <blockquote>
  <p>Error 413 (Request Entity Too Large)</p>
  <p>Your client issued a request that was too large</p>
  <p>That's all we know</p>
  </blockquote>
  <p>App Engine has a file size limit of 32MB. However, my file is only 24KB.  How can I fix this error?</p>