Managing automatic page redirects in Ajax requests

For the past two days, I have been encountering a challenging issue with my Laravel application that is hosted on Heroku server. The app allows file uploads through an ajax request, displaying upload progress on the page and returning JSON response upon completion.

Despite setting Content-Type: application/json and ensuring that X-CSRF-TOKEN is valid in the header, after the upload is complete, instead of receiving the expected JSON response, the status is being set to 301 or 302, redirecting me to the home page.

When testing the Laravel app on my local server, it runs smoothly without any issues. I am now considering ways to pause Chrome before loading the redirection page by adding a breakpoint, allowing me to understand what exactly is happening prior to the redirection. I have attempted using the following code snippet in the console:

window.addEventListener("beforeunload", function() { debugger; }, false)
but unfortunately, this did not trigger a breakpoint. Any assistance on this matter would be greatly appreciated.

javascriptajaxlaravelheroku

Answer №1

After spending two busy days troubleshooting my Heroku server, I finally discovered that the Heroku Apache server requires Laravel routes to handle both POST and GET methods. In my situation, I had to use the following route:

Route::match(['get', 'post'], '/xls2db', 'HomeController@xls2db')->name('xls2db');

This requirement makes sense because after an Ajax POST method, it returns a json response which can only be handled if the route also accepts the GET method.

While testing my app on my local server using php artisan serve, I found that it could get a json response with just a POST route.

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