The request filtering module is configured to deny a request where the query string is too long when .net core hostring in iis Requested URL http://localhost:80/Account/Login?ReturnUrl=%2FHome%2FError%3FReturnUrl%3D%252FHome%252FError%253FReturnUrl %253D%25252FHome%25252FError%25253FReturnUrl%25253D%2525252FHome%2525252FError%2525253F

Sundar Neupane

• May 05, 2020

How to solve this issue when .net core project is hosted?

Requested URL

   http://localhost:80/Account/Login?ReturnUrl=%2FHome%2FError%3FReturnUrl%3D%252FHome%252FError%253FReturnUrl

%253D%25252FHome%25252FError%25253FReturnUrl%25253D%2525252FHome%2525252FError%2525253F

ReturnUrl%2525253D%252525252FHome%252525252FError%252525253FReturnUrl%252525253D%25252525252F

Home%25252525252FError%25252525253FReturnUrl%25252525253D%2525252525252FHome%2525252525252

FError%2525252525253FReturnUrl%2525252525253D%252525252525252FHome%252525252525252FError%252525252525253F

ReturnUrl%252525252525253D%25252525252525252FHome%25252525252525252FError%25252525252525253

FReturnUrl%25252525252525253D%2525252525252525252FHome%2525252525252525252FError%2525252525252525253F

ReturnUrl%2525252525252525253D%252525252525252525252FHome%252525252525252525252FError%252525252525252525253F

ReturnUrl%252525252525252525253D%25252525252525252525252FHome%25252525252525252525252FError%25252525252525252525253

FReturnUrl%25252525252525252525253D%2525252525252525252525252FHome%2525252525252525252525252

FError%2525252525252525252525253FReturnUrl%2525252525252525252525253D%252525252525252525252525252

FHome%252525252525252525252525252FError%252525252525252525252525253FReturnUrl%252525252525252525252525253D%25252525252525252525252525252F

Home%25252525252525252525252525252FError%25252525252525252525252525253FReturnUrl%25252525252525252525252525253

D%2525252525252525252525252525252FHome%2525252525252525252525252525252FError%2525252525252525252525252525253

FReturnUrl%2525252525252525252525252525253D%252525252525252525252525252525252FHome%252525252525252525252525252525252

FError%252525252525252525252525252525253FReturnUrl%252525252525252525252525252525253D%25252525252525252525252525252525252

FHome%25252525252525252525252525252525252FError%25252525252525252525252525252525253FReturnUrl%

25252525252525252525252525252525253D%2525252525252525252525252525252525252FHome%2525252525252525252525252525252525252

FError%2525252525252525252525252525252525253FReturnUrl%2525252525252525252525252525252525253D%252525252525252525252525252525252525252

FHome%252525252525252525252525252525252525252FError%252525252525252525252525252525252525253

FReturnUrl%252525252525252525252525252525252525253D%25

252525252525252525252525252525252525252FHome%25252525252525252525252525252525252525252FError 

Answer

Make sure  .net core  x64  or  x86 | Hosting Bundle  and  .net Core SDK  are install or not in control panel as given below

 

                                                                                     OR

                The default HSTS value is 30 days. You may want to change this for production scenarios, 

                see https://aka.ms/aspnetcore-hsts.

 

 

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