Joomla SEF URLs interfere with Hikashop Modals

-- url of the page with the problem -- : restaurantmegastore.com
-- HikaShop version -- : 3.4.1
-- Joomla version -- : 3.8.10
-- PHP version -- : 7.1.14

Upon launching a Hikashop 3.4.0 site we discovered an annoyance involving Joomla's SEF URL settings.

On the checkout page, using the latest layout, various block components are updated via AJAX as the user submits information. If they submit valid information, everything goes well, but if they submit invalid information while SEF URLS is turned on, we get an error page reporting "page not found: submitblock". If we turn SEF URLs off, we get a normal error response.

Pictures below include the sample data submitted to the Authorize.net payment plugin.

The response if SEF URLs was turned off.


The response with SEF URLs turned on.


This same behavior has been found if a user attempts to log in on the checkout page with an incorrect password.

The javascript console in the browser reports an error that a page was not loaded, in the payment plugin's case the unfound url was " restaurantmegastore.com/cart/checkout/submitblock/tmpl-raw "


At the moment, we're turning the site's SEF URLs off, but that's not workable for long.

Any suggestions?

Information on our pre-launch (staging) site below. I'll see if I can replicate the problem on a new Hikashop installation this afternoon.

Go to staging site, add an item to the cart, go to checkout (in menu under cart, or through small cart), and try to log in with a made up name and password.

Then go to admin and turn on SEF and repeat.

That should show you the behavior.

Thank you for your help.

Well, I downloaded the misbehaving development site and then compared its files to a freshly installed joomla site with matching installations of hikashop, template, Akeeba tools and JCE editor.

Attached is the comparison, which at first glance doesn't seem to differ in any areas which might cause an issue like this. Mostly artwork, template and normal customization. I don't know how our custom shipping plugin would interfere with forms like the login, but disabling it made no difference.

All my other customizations were thought Hikashop interfaces except CSS which I handled through the template's style interface.

I even compared the .htaccess files, but there were no differences, and emptied every cache I could.

I'm still stumped.

FANTASTIC!

I was completely stumped about it and was slowly re-creting the site locally a bit at a time to see when it cropped up! I'll keep an eye on that in the future.

Thank you very much for your help! It is greatly appreciated!