Cart Functions not working with "Pretty" Permalink Setting.

Hi,

I got some issue with Permalink Setting in WooCommerce.

First this is my WC system report:

`
### WordPress Environment ###

Home URL: http://gacungdinh.com
Site URL: http://gacungdinh.com
WC Version: 2.6.2
Log Directory Writable: ✔
WP Version: 4.5.3
WP Multisite: –
WP Memory Limit: 256 MB
WP Debug Mode: –
WP Cron: ✔
Language: en_US

### Server Environment ###

Server Info: nginx/1.9.14
PHP Version: 5.6.20
PHP Post Max Size: 100 MB
PHP Time Limit: 100
PHP Max Input Vars: 1000
cURL Version: 7.47.1
OpenSSL/1.0.1s

SUHOSIN Installed: –
Max Upload Size: 100 MB
Default Timezone is UTC: ✔
fsockopen/cURL: ✔
SoapClient: ✔
DOMDocument: ✔
GZip: ✔
Multibyte String: ✔
Remote Post: ✔
Remote Get: ✔

### Database ###

WC Database Version: 2.6.2
:
woocommerce_sessions: ✔
woocommerce_api_keys: ✔
woocommerce_attribute_taxonomies: ✔
woocommerce_downloadable_product_permissions: ✔
woocommerce_order_items: ✔
woocommerce_order_itemmeta: ✔
woocommerce_tax_rates: ✔
woocommerce_tax_rate_locations: ✔
woocommerce_shipping_zones: ✔
woocommerce_shipping_zone_locations: ✔
woocommerce_shipping_zone_methods: ✔
woocommerce_payment_tokens: ✔
woocommerce_payment_tokenmeta: ✔

### Active Plugins (8) ###

Better Admin Bar: by Jakub Novák – 1.9
Easy Google Fonts: by Titanium Themes – 1.4.1
Header and Footer: by Stefano Lissa – 2.0.2
Backend Localization: by Bernhard Kau – 2.1.7
Media Library Assistant: by David Lingren
Fair Trade Judaica – 2.31

TinyMCE Advanced: by Andrew Ozz – 4.3.10.1
WooCommerce: by WooThemes – 2.6.2
Yoast SEO: by Team Yoast – 3.3.4

### Settings ###

Force SSL: –
Currency: VND (₫)
Currency Position: right_space
Thousand Separator: ,
Decimal Separator: .
Number of Decimals: 0

### API ###

API Enabled: ✔

### WC Pages ###

Shop Base: ❌ Page not set
Cart: #280 – /chao-mung-ban-mua-hang/
Checkout: ❌ Page not set
My Account: ❌ Page not set

### Taxonomies ###

Product Types: external (external)
grouped (grouped)
simple (simple)
variable (variable)

### Theme ###

Name: FoodHunt
Version: 1.0
Author URL: http://themegrill.com
Child Theme: ❌ – If you’re modifying WooCommerce on a parent theme you didn’t build personally
then we recommend using a child theme. See: How to create a child theme

WooCommerce Support: ❌ Not Declared

### Templates ###

Overrides: –
`

When I setting Permalink is Default (Using page_id / post_id) all is ok.
But when I setting Permalink is “PostName” (Pretty URL for SEO). I cannot remove item from CART.
Please view Issue I got in this link: https://gyazo.com/0dea554b12975b28b6c94a317604a93e

https://wordpress.org/plugins/woocommerce/