i faced  XMLHttpRequest error.
                  
                  
                  i ask our backend dev to add this line header (’Access-Control-Allow-Origin: *’);
                  
                  
                  but he said that in the backend he didn’t use  HTTPS or cookies
                  
                  
                  just consume the API in JSON normally
                  
                  
                  and the code is encrypted
                  
                  
                  he cants edit it
                  
                  
                  is there any way to fix it?
                  
                  
                
https://cors-anywhere.herokuapp.com/corsdemo
And add this into ur script tag in web/index.html
Then click this button
Open that url in the same browser u are running the flutter web app
 Hossein
                          MSV
                        
                      
                    
                    
                    
                    
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                          Hossein
                          MSV
                        
                      
                    
                    
                    
                    
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                  i did exactly what u said dude. but i receive same error .damn it 🙁
Bummer… u sure is cors? Open chrome dev tools
Share the url of ur site
 Hossein
                          MSV
                        
                      
                    
                    
                    
                    
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                          Hossein
                          MSV
                        
                      
                    
                    
                    
                    
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                  idk why when i oepn index.html in devtools that function gone
U have to add it in web/index.html
 Hossein
                          MSV
                        
                      
                    
                    
                    
                    
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                          Hossein
                          MSV
                        
                      
                    
                    
                    
                    
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                  ahh i have to build in in real host? i was runing it in debug mode
 Hossein
                          MSV
                        
                      
                    
                    
                    
                    
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                          Hossein
                          MSV
                        
                      
                    
                    
                    
                    
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                  yes i did this
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