BUG: timeout when looking for works

I sometimes get timeout errors when searching for dois:

Traceback (most recent call last):
  File "C:\Users\delap\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\requests\models.py", line 910, in json
    return complexjson.loads(self.text, **kwargs)
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.3568.0_x64__qbz5n2kfra8p0\lib\json\__init__.py", line 346, in loads
    return _default_decoder.decode(s)
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.3568.0_x64__qbz5n2kfra8p0\lib\json\decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.3568.0_x64__qbz5n2kfra8p0\lib\json\decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\Projets\h-transport-materials-dashboard\test.py", line 6, in <module>
    works.doi("10.1103/PhysRevB.4.330")
  File "C:\Users\delap\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\crossref\restful.py", line 957, in doi
    result = result.json()
  File "C:\Users\delap\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\requests\models.py", line 917, in json
    raise RequestsJSONDecodeError(e.msg, e.doc, e.pos)
requests.exceptions.JSONDecodeError: [Errno Expecting value] <html>
<head><title>504 Gateway Time-out</title></head>
<body>
<center><h1>504 Gateway Time-out</h1></center>
</body>
</html>
: 0

This is rather new and I haven't experience that before.

Here's the code to reproduce:

from crossref.restful import Works

works = Works()
works.doi("10.1103/PhysRevB.4.330")

fabiobatalha / crossrefapi

BUG: timeout when looking for works #46