/cart?add-to-cart=ID adds the item to cart twice

[dwainm]

When using "/cart?add-to-cart=ID" instead of "/cart/?add-to-cart=50" causes the item to be added twice.

The first time is just before the redirect and then again after the redirect.

[mikejolley]

I don't think that can be worked around HOWEVER, our internal functions for generating add-to-cart urls always use the permalink. Permalinks have a trailing slash. This means the only time you'd get /cart? is if you had some code removing trailing slashes, or you had some external code creating that add to cart url.

If you have a case where WC core itself is not adding a trailing slash, add more info and reopen.

[noob1211]

why the heck is this closed...this is still a persisting problem....
show the EXACT solution or reopen this issue. i cant believe this crap...

[dwainm]

@noob1211 , I opened this ticket as I had an issue on one of the sites I worked on. The problem was that the url was generated by the users theme.

If you look into WC core you wont find URLs like these being generated so this is not something that should be fixed within WooCommerce but rather the code that generates the erroneous url.

[korobochkin]

I understand what happening with "/cart?add-to-cart" and "/cart/?add-to-cart" (slash, redirects...) but in my WooCommerce this happening with and without slash :) With slash product added twice and without slash product added 4 times (2 x 2)! But this happening only when I use /store/checkout/?add-to-cart. With /store/cart/?add-to-cart all fine. Any ideas or suggestions?

Seems like WooCommerce doing something before open checkout page (maybe look at cart page or something).

Updated: I also have absolutely identical site on local server and I have this bug only on production server. What is going wrong...

Updated 2: Find another ticket about this issue. #1611

[anuppandey]

This is how I fixed it for www.semipreciousWholesale.com - I changed the static page selection to none.

[RumenGeorgieff]

I fix this adding / (slash) before ? e.g. https://site.com/url/?add-to-cart=id not https://site.com/url?add-to-cart=id

I'm adding a variation product via ajax to "/cart/?" and still getting the item added twice as well. Any solutions out there for variations ids?

[mikebronner]

I've seen this problem related to WooCommerce Pricing Tables as well. If you add an item to the cart, then click the View Cart link in the confirmation message, it adds a second item.

[anuppandey]

oh GOD, this issue keeps coming back...even in latest Wordpress update not resolved. This is becoming like Magento!

[mikejolley]

It's not something WordPress will resolve; this is a problem on your site which probably didn't get resolved before. Check .htaccess to ensure it's not removing or redirecting to pages without end-slashes. WooCommerce cannot prevent your server redirecting.

[mikebronner]

Many of us are not using Apache, but running nginx these days, so .htaccess would have no effect. Any suggestions for resolving this issue on nginx?

[mikejolley]

Look at the server config/nginx equivalent? Thats even if it's the same issue; you can look at the browser dev tools to see if any of the resources on the page have add-to-cart query string appended, or see if there is indeed a redirect from slash/non-slashed versions of the page.