Friday, February 26, 2016

PHP server serving valid content but still returning status code 404


You have an ajax script get-data.php which should return valid JSON data.

When you use your web browser to open the page, everything looks good, and you can seee the JSON.

However, when you issue a jQuery AJAX call, it always returns error 404.

In my case, I wasn't checking carefully enough, because the page returned the status code 404, even it served the content properly. This was probably caused by WP functions included in my script.

When I used http_status_code(200) manually, all went back to work :)

Moral  of the story: Your  scripts sometimes contain extra code which can cause troubles. :O

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