Method PUT is not allowed by Access-Control-Allow-Methods in preflight response FLASK CORS












1















GETs are working right. I can't seem to make PUT work and I fear POST is not working as well.



Kept on having the error



Access to XMLHttpRequest at '<...>' from origin 'https://localhost:3000' has been blocked by CORS policy: Method PUT is not allowed by Access-Control-Allow-Methods in preflight response.


I have a local webapp that calls on an external api which means CORS will be one of the hurdles I should tackle.



Here's my flask code.



@blueprint.route('/profiles/<oi_id>', methods=['POST'])
@cross_origin(send_wildcard=True, methods=['POST', 'OPTIONS'])
def create_checkin_profile(oi_id):
return jsonify(cph.create_owner_profile_info(oi_id, json.loads(request.data)))


@blueprint.route('/profiles/<oi_id>', methods=['PUT'])
@cross_origin(send_wildcard=True, methods=['PUT', 'OPTIONS'])
def edit_checkin_profile(oi_id):
return jsonify(cph.edit_owner_profile_info(oi_id, json.loads(request.data)))


It's quite confusing since I'm pretty sure I allowed PUT.
I'm using axios for this on a react app. Here's my call-api function.



axios({
method: 'PUT',
url: url,
timeout: 3000,
data: data,
headers: {
"Access-Control-Allow-Origin": "*",
"Content-Type": "application/json",
Accept: "application/json",
},
});









share|improve this question























  • From React side, it appears to me your implementations are correct, please check how to handle cors in flask.

    – Satyaki
    Nov 26 '18 at 11:43











  • I just used Flask-Cors. @cross_origin() decorator in which it should handle the CORS requests nicely. That's why I'm confused why it doesn't work.

    – Franrey Saycon
    Nov 26 '18 at 11:54











  • I'm not a python guy. So can't confirm but this might help you : stackoverflow.com/questions/39550920/…

    – Satyaki
    Nov 26 '18 at 11:57
















1















GETs are working right. I can't seem to make PUT work and I fear POST is not working as well.



Kept on having the error



Access to XMLHttpRequest at '<...>' from origin 'https://localhost:3000' has been blocked by CORS policy: Method PUT is not allowed by Access-Control-Allow-Methods in preflight response.


I have a local webapp that calls on an external api which means CORS will be one of the hurdles I should tackle.



Here's my flask code.



@blueprint.route('/profiles/<oi_id>', methods=['POST'])
@cross_origin(send_wildcard=True, methods=['POST', 'OPTIONS'])
def create_checkin_profile(oi_id):
return jsonify(cph.create_owner_profile_info(oi_id, json.loads(request.data)))


@blueprint.route('/profiles/<oi_id>', methods=['PUT'])
@cross_origin(send_wildcard=True, methods=['PUT', 'OPTIONS'])
def edit_checkin_profile(oi_id):
return jsonify(cph.edit_owner_profile_info(oi_id, json.loads(request.data)))


It's quite confusing since I'm pretty sure I allowed PUT.
I'm using axios for this on a react app. Here's my call-api function.



axios({
method: 'PUT',
url: url,
timeout: 3000,
data: data,
headers: {
"Access-Control-Allow-Origin": "*",
"Content-Type": "application/json",
Accept: "application/json",
},
});









share|improve this question























  • From React side, it appears to me your implementations are correct, please check how to handle cors in flask.

    – Satyaki
    Nov 26 '18 at 11:43











  • I just used Flask-Cors. @cross_origin() decorator in which it should handle the CORS requests nicely. That's why I'm confused why it doesn't work.

    – Franrey Saycon
    Nov 26 '18 at 11:54











  • I'm not a python guy. So can't confirm but this might help you : stackoverflow.com/questions/39550920/…

    – Satyaki
    Nov 26 '18 at 11:57














1












1








1








GETs are working right. I can't seem to make PUT work and I fear POST is not working as well.



Kept on having the error



Access to XMLHttpRequest at '<...>' from origin 'https://localhost:3000' has been blocked by CORS policy: Method PUT is not allowed by Access-Control-Allow-Methods in preflight response.


I have a local webapp that calls on an external api which means CORS will be one of the hurdles I should tackle.



Here's my flask code.



@blueprint.route('/profiles/<oi_id>', methods=['POST'])
@cross_origin(send_wildcard=True, methods=['POST', 'OPTIONS'])
def create_checkin_profile(oi_id):
return jsonify(cph.create_owner_profile_info(oi_id, json.loads(request.data)))


@blueprint.route('/profiles/<oi_id>', methods=['PUT'])
@cross_origin(send_wildcard=True, methods=['PUT', 'OPTIONS'])
def edit_checkin_profile(oi_id):
return jsonify(cph.edit_owner_profile_info(oi_id, json.loads(request.data)))


It's quite confusing since I'm pretty sure I allowed PUT.
I'm using axios for this on a react app. Here's my call-api function.



axios({
method: 'PUT',
url: url,
timeout: 3000,
data: data,
headers: {
"Access-Control-Allow-Origin": "*",
"Content-Type": "application/json",
Accept: "application/json",
},
});









share|improve this question














GETs are working right. I can't seem to make PUT work and I fear POST is not working as well.



Kept on having the error



Access to XMLHttpRequest at '<...>' from origin 'https://localhost:3000' has been blocked by CORS policy: Method PUT is not allowed by Access-Control-Allow-Methods in preflight response.


I have a local webapp that calls on an external api which means CORS will be one of the hurdles I should tackle.



Here's my flask code.



@blueprint.route('/profiles/<oi_id>', methods=['POST'])
@cross_origin(send_wildcard=True, methods=['POST', 'OPTIONS'])
def create_checkin_profile(oi_id):
return jsonify(cph.create_owner_profile_info(oi_id, json.loads(request.data)))


@blueprint.route('/profiles/<oi_id>', methods=['PUT'])
@cross_origin(send_wildcard=True, methods=['PUT', 'OPTIONS'])
def edit_checkin_profile(oi_id):
return jsonify(cph.edit_owner_profile_info(oi_id, json.loads(request.data)))


It's quite confusing since I'm pretty sure I allowed PUT.
I'm using axios for this on a react app. Here's my call-api function.



axios({
method: 'PUT',
url: url,
timeout: 3000,
data: data,
headers: {
"Access-Control-Allow-Origin": "*",
"Content-Type": "application/json",
Accept: "application/json",
},
});






python reactjs flask axios flask-cors






share|improve this question













share|improve this question











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share|improve this question










asked Nov 26 '18 at 11:29









Franrey SayconFranrey Saycon

1099




1099













  • From React side, it appears to me your implementations are correct, please check how to handle cors in flask.

    – Satyaki
    Nov 26 '18 at 11:43











  • I just used Flask-Cors. @cross_origin() decorator in which it should handle the CORS requests nicely. That's why I'm confused why it doesn't work.

    – Franrey Saycon
    Nov 26 '18 at 11:54











  • I'm not a python guy. So can't confirm but this might help you : stackoverflow.com/questions/39550920/…

    – Satyaki
    Nov 26 '18 at 11:57



















  • From React side, it appears to me your implementations are correct, please check how to handle cors in flask.

    – Satyaki
    Nov 26 '18 at 11:43











  • I just used Flask-Cors. @cross_origin() decorator in which it should handle the CORS requests nicely. That's why I'm confused why it doesn't work.

    – Franrey Saycon
    Nov 26 '18 at 11:54











  • I'm not a python guy. So can't confirm but this might help you : stackoverflow.com/questions/39550920/…

    – Satyaki
    Nov 26 '18 at 11:57

















From React side, it appears to me your implementations are correct, please check how to handle cors in flask.

– Satyaki
Nov 26 '18 at 11:43





From React side, it appears to me your implementations are correct, please check how to handle cors in flask.

– Satyaki
Nov 26 '18 at 11:43













I just used Flask-Cors. @cross_origin() decorator in which it should handle the CORS requests nicely. That's why I'm confused why it doesn't work.

– Franrey Saycon
Nov 26 '18 at 11:54





I just used Flask-Cors. @cross_origin() decorator in which it should handle the CORS requests nicely. That's why I'm confused why it doesn't work.

– Franrey Saycon
Nov 26 '18 at 11:54













I'm not a python guy. So can't confirm but this might help you : stackoverflow.com/questions/39550920/…

– Satyaki
Nov 26 '18 at 11:57





I'm not a python guy. So can't confirm but this might help you : stackoverflow.com/questions/39550920/…

– Satyaki
Nov 26 '18 at 11:57












1 Answer
1






active

oldest

votes


















0














Alright I fixed this.
Apparently according to the docs I have to specify "Content-Type" on the cross origin requests. Like so:



@cross_origin(allow_headers=['Content-Type'])


Don't be fooled by the default of allow all. You need to specify this apparently.



I have to remove unnecessary headers such as Accept and Access-Control-Allow-Origin. Updating my axios like so:



axios({
method: 'PUT',
url: url,
timeout: 3000,
data: data,
headers: {
"Content-Type": "application/json",
},
});


BONUS:



I ran into a problem if my api calls returned a non 200 response with preflight request, the response body becomes null. I just added these lines of code on my main application. I needed the body for the details of the error is there.



@app.after_request
def set_cors_header(response):
response.headers['Access-Control-Allow-Origin'] = '*'
return response





share|improve this answer
























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    0














    Alright I fixed this.
    Apparently according to the docs I have to specify "Content-Type" on the cross origin requests. Like so:



    @cross_origin(allow_headers=['Content-Type'])


    Don't be fooled by the default of allow all. You need to specify this apparently.



    I have to remove unnecessary headers such as Accept and Access-Control-Allow-Origin. Updating my axios like so:



    axios({
    method: 'PUT',
    url: url,
    timeout: 3000,
    data: data,
    headers: {
    "Content-Type": "application/json",
    },
    });


    BONUS:



    I ran into a problem if my api calls returned a non 200 response with preflight request, the response body becomes null. I just added these lines of code on my main application. I needed the body for the details of the error is there.



    @app.after_request
    def set_cors_header(response):
    response.headers['Access-Control-Allow-Origin'] = '*'
    return response





    share|improve this answer




























      0














      Alright I fixed this.
      Apparently according to the docs I have to specify "Content-Type" on the cross origin requests. Like so:



      @cross_origin(allow_headers=['Content-Type'])


      Don't be fooled by the default of allow all. You need to specify this apparently.



      I have to remove unnecessary headers such as Accept and Access-Control-Allow-Origin. Updating my axios like so:



      axios({
      method: 'PUT',
      url: url,
      timeout: 3000,
      data: data,
      headers: {
      "Content-Type": "application/json",
      },
      });


      BONUS:



      I ran into a problem if my api calls returned a non 200 response with preflight request, the response body becomes null. I just added these lines of code on my main application. I needed the body for the details of the error is there.



      @app.after_request
      def set_cors_header(response):
      response.headers['Access-Control-Allow-Origin'] = '*'
      return response





      share|improve this answer


























        0












        0








        0







        Alright I fixed this.
        Apparently according to the docs I have to specify "Content-Type" on the cross origin requests. Like so:



        @cross_origin(allow_headers=['Content-Type'])


        Don't be fooled by the default of allow all. You need to specify this apparently.



        I have to remove unnecessary headers such as Accept and Access-Control-Allow-Origin. Updating my axios like so:



        axios({
        method: 'PUT',
        url: url,
        timeout: 3000,
        data: data,
        headers: {
        "Content-Type": "application/json",
        },
        });


        BONUS:



        I ran into a problem if my api calls returned a non 200 response with preflight request, the response body becomes null. I just added these lines of code on my main application. I needed the body for the details of the error is there.



        @app.after_request
        def set_cors_header(response):
        response.headers['Access-Control-Allow-Origin'] = '*'
        return response





        share|improve this answer













        Alright I fixed this.
        Apparently according to the docs I have to specify "Content-Type" on the cross origin requests. Like so:



        @cross_origin(allow_headers=['Content-Type'])


        Don't be fooled by the default of allow all. You need to specify this apparently.



        I have to remove unnecessary headers such as Accept and Access-Control-Allow-Origin. Updating my axios like so:



        axios({
        method: 'PUT',
        url: url,
        timeout: 3000,
        data: data,
        headers: {
        "Content-Type": "application/json",
        },
        });


        BONUS:



        I ran into a problem if my api calls returned a non 200 response with preflight request, the response body becomes null. I just added these lines of code on my main application. I needed the body for the details of the error is there.



        @app.after_request
        def set_cors_header(response):
        response.headers['Access-Control-Allow-Origin'] = '*'
        return response






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 27 '18 at 6:36









        Franrey SayconFranrey Saycon

        1099




        1099
































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