How to enable CORS for a local file that references a hosted ASP.NET Web API that is hosted on Amazon AWS












0














So when I open a file that references a hosted ASP.NET Web API 2.0 project, I get the error:



Possible cross-origin (CORS) issue? The URL origin (https://secreturl.amazonaws.com) does not match the page (file://). Check the server returns the correct 'Access-Control-Allow-*' headers.



I only get answers for enabling cores for an HTTP request pipeline but not for (file://). I open the file from an index.html file, with path file:///C:/Users/PCName/desktop/index.html I assume the CORS have to be enabled in the Startup.cs file in the ASP.NET Core Web API 2.0










share|improve this question





























    0














    So when I open a file that references a hosted ASP.NET Web API 2.0 project, I get the error:



    Possible cross-origin (CORS) issue? The URL origin (https://secreturl.amazonaws.com) does not match the page (file://). Check the server returns the correct 'Access-Control-Allow-*' headers.



    I only get answers for enabling cores for an HTTP request pipeline but not for (file://). I open the file from an index.html file, with path file:///C:/Users/PCName/desktop/index.html I assume the CORS have to be enabled in the Startup.cs file in the ASP.NET Core Web API 2.0










    share|improve this question



























      0












      0








      0







      So when I open a file that references a hosted ASP.NET Web API 2.0 project, I get the error:



      Possible cross-origin (CORS) issue? The URL origin (https://secreturl.amazonaws.com) does not match the page (file://). Check the server returns the correct 'Access-Control-Allow-*' headers.



      I only get answers for enabling cores for an HTTP request pipeline but not for (file://). I open the file from an index.html file, with path file:///C:/Users/PCName/desktop/index.html I assume the CORS have to be enabled in the Startup.cs file in the ASP.NET Core Web API 2.0










      share|improve this question















      So when I open a file that references a hosted ASP.NET Web API 2.0 project, I get the error:



      Possible cross-origin (CORS) issue? The URL origin (https://secreturl.amazonaws.com) does not match the page (file://). Check the server returns the correct 'Access-Control-Allow-*' headers.



      I only get answers for enabling cores for an HTTP request pipeline but not for (file://). I open the file from an index.html file, with path file:///C:/Users/PCName/desktop/index.html I assume the CORS have to be enabled in the Startup.cs file in the ASP.NET Core Web API 2.0







      c# amazon-web-services aws-lambda asp.net-core-2.0






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 23 '18 at 10:43









      currarpickt

      1,94631728




      1,94631728










      asked Nov 23 '18 at 8:26









      MswatiLomnyama

      1421213




      1421213
























          1 Answer
          1






          active

          oldest

          votes


















          0














          Most browser implementations by default do not support CORS headers for local files (specifically they set the value to null which cannot then be used in an Access-Control-Allow header.)



          The easiest thing to do is start a small server. If you've got Python installed, this is as easy as running python3 -m http.server 8000 in the C:/Users/PCName/desktop directory, and then you can browse to localhost:8000 (there are other 'instant servers' out there!).



          That way you can use Access-Control-Allow-*.






          share|improve this answer





















            Your Answer






            StackExchange.ifUsing("editor", function () {
            StackExchange.using("externalEditor", function () {
            StackExchange.using("snippets", function () {
            StackExchange.snippets.init();
            });
            });
            }, "code-snippets");

            StackExchange.ready(function() {
            var channelOptions = {
            tags: "".split(" "),
            id: "1"
            };
            initTagRenderer("".split(" "), "".split(" "), channelOptions);

            StackExchange.using("externalEditor", function() {
            // Have to fire editor after snippets, if snippets enabled
            if (StackExchange.settings.snippets.snippetsEnabled) {
            StackExchange.using("snippets", function() {
            createEditor();
            });
            }
            else {
            createEditor();
            }
            });

            function createEditor() {
            StackExchange.prepareEditor({
            heartbeatType: 'answer',
            autoActivateHeartbeat: false,
            convertImagesToLinks: true,
            noModals: true,
            showLowRepImageUploadWarning: true,
            reputationToPostImages: 10,
            bindNavPrevention: true,
            postfix: "",
            imageUploader: {
            brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
            contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
            allowUrls: true
            },
            onDemand: true,
            discardSelector: ".discard-answer"
            ,immediatelyShowMarkdownHelp:true
            });


            }
            });














            draft saved

            draft discarded


















            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53443004%2fhow-to-enable-cors-for-a-local-file-that-references-a-hosted-asp-net-web-api-tha%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown

























            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            0














            Most browser implementations by default do not support CORS headers for local files (specifically they set the value to null which cannot then be used in an Access-Control-Allow header.)



            The easiest thing to do is start a small server. If you've got Python installed, this is as easy as running python3 -m http.server 8000 in the C:/Users/PCName/desktop directory, and then you can browse to localhost:8000 (there are other 'instant servers' out there!).



            That way you can use Access-Control-Allow-*.






            share|improve this answer


























              0














              Most browser implementations by default do not support CORS headers for local files (specifically they set the value to null which cannot then be used in an Access-Control-Allow header.)



              The easiest thing to do is start a small server. If you've got Python installed, this is as easy as running python3 -m http.server 8000 in the C:/Users/PCName/desktop directory, and then you can browse to localhost:8000 (there are other 'instant servers' out there!).



              That way you can use Access-Control-Allow-*.






              share|improve this answer
























                0












                0








                0






                Most browser implementations by default do not support CORS headers for local files (specifically they set the value to null which cannot then be used in an Access-Control-Allow header.)



                The easiest thing to do is start a small server. If you've got Python installed, this is as easy as running python3 -m http.server 8000 in the C:/Users/PCName/desktop directory, and then you can browse to localhost:8000 (there are other 'instant servers' out there!).



                That way you can use Access-Control-Allow-*.






                share|improve this answer












                Most browser implementations by default do not support CORS headers for local files (specifically they set the value to null which cannot then be used in an Access-Control-Allow header.)



                The easiest thing to do is start a small server. If you've got Python installed, this is as easy as running python3 -m http.server 8000 in the C:/Users/PCName/desktop directory, and then you can browse to localhost:8000 (there are other 'instant servers' out there!).



                That way you can use Access-Control-Allow-*.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 23 '18 at 10:19









                thomasmichaelwallace

                2,5251817




                2,5251817






























                    draft saved

                    draft discarded




















































                    Thanks for contributing an answer to Stack Overflow!


                    • Please be sure to answer the question. Provide details and share your research!

                    But avoid



                    • Asking for help, clarification, or responding to other answers.

                    • Making statements based on opinion; back them up with references or personal experience.


                    To learn more, see our tips on writing great answers.





                    Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


                    Please pay close attention to the following guidance:


                    • Please be sure to answer the question. Provide details and share your research!

                    But avoid



                    • Asking for help, clarification, or responding to other answers.

                    • Making statements based on opinion; back them up with references or personal experience.


                    To learn more, see our tips on writing great answers.




                    draft saved


                    draft discarded














                    StackExchange.ready(
                    function () {
                    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53443004%2fhow-to-enable-cors-for-a-local-file-that-references-a-hosted-asp-net-web-api-tha%23new-answer', 'question_page');
                    }
                    );

                    Post as a guest















                    Required, but never shown





















































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown

































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown







                    Popular posts from this blog

                    Trompette piccolo

                    Slow SSRS Report in dynamic grouping and multiple parameters

                    Simon Yates (cyclisme)