Hello, the problem is such a site without frameworks on pure php and not on vps hosting, the site has pjax links goes on without reloading the pages, but the page cannot be processed; the page is reloading; I cannot understand what the problem is
$(function () { $(document).pjax('a', '#pjax-container', { fragment: '#pjax-container', maxCacheLength: 20000000000, timeout: 65000000000, container: '#pjax-container' }); $(document).on('submit', 'form[data-pjax]', function(event) { $.pjax.submit(event, '#jf-form') }) }); <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <script src="https://raw.githubusercontent.com/defunkt/jquery-pjax/master/jquery.pjax.js"></script> <form data-pjax name="form" id="jf-form" class="mt-5" action="flt.php" method="post"> <select class="w-100" name="speed" id="speed"> <option value="">ΠΡΠ±Π΅ΡΠΈΡΠ΅ ΡΠ°ΠΉΠΎΠ½</option> <option value="6">ΠΠΈΡΠΎΠ²ΡΠΊΠΈΠΉ</option> <option value="5">ΠΠ΅Π½ΠΈΡΠΊΠΈΠΉ</option> <option value="4">ΠΠ·Π΅ΡΠΆΠΈΠ½ΡΠΊΠΈΠΉ</option> <option value="7">ΠΠ°Π²ΠΎΠ»ΠΆΡΠΊΠΈΠΉ</option> <option value="8">ΠΡΠ°ΡΠ½ΠΎΠΏΠ΅ΡΠ΅ΠΊΠΎΠΏΡΠΊΠΈΠΉ</option> <option value="9">Π€ΡΡΠ½Π·Π΅Π½ΡΠΊΠΈΠΉ</option> </select> <p class="w-100 mt-3">ΠΠΎΠ»ΠΈΡΠ΅ΡΡΠ²ΠΎ ΠΊΠΎΠΌΠ½Π°Ρ</p> <label for="checkbox-1"><span class="text-check">1</span></label> <input type="checkbox" name="appartament[]" class="input" id="checkbox-1" value="1"> <label for="checkbox-2"><span class="text-check">2</span></label> <input type="checkbox" name="appartament[]" class="input" id="checkbox-2" value="2"> <label for="checkbox-3"><span class="text-check">3</span></label> <input type="checkbox" name="appartament[]" class="input" id="checkbox-3" value="3"> <label for="checkbox-4"><span class="text-check">4+</span></label> <input type="checkbox" name="appartament[]" class="input" id="checkbox-4" value="4"> <p class="mt-2">Π¦Π΅Π½Π°:</p> <div class="row"> <div class="col"> <input type="text" name="price_start" class="form-control" id="price" placeholder="ΠΡ"> </div> <div class="col"> <input type="text" name="price_end" class="form-control" id="price2" placeholder="ΠΠΎ"> </div> </div> <input type="submit" class="btn btn-primary btn-block mt-4" name="filter" value="ΠΠΎΠ΄ΠΎΠ±ΡΠ°ΡΡ ΠΊΠ²Π°ΡΡΠΈΡΡ" /> </form>