diff --git a/addons/point_of_sale/static/src/js/screens.js b/addons/point_of_sale/static/src/js/screens.js
index 8b1b001c340..7c1cb9559a6 100644
--- a/addons/point_of_sale/static/src/js/screens.js
+++ b/addons/point_of_sale/static/src/js/screens.js
@@ -1487,7 +1487,22 @@ var ReceiptScreenWidget = ScreenWidget.extend({
         }
     },
     print_web: function() {
-        window.print();
+        if ($.browser.safari) {
+            document.execCommand('print', false, null);
+        } else {
+            try {
+                window.print();
+            } catch(err) {
+                if (navigator.userAgent.toLowerCase().indexOf("android") > -1) {
+                    this.gui.show_popup('error',{
+                        'title':_t('Printing is not supported on some android browsers'),
+                        'body': _t('Printing is not supported on some android browsers due to no default printing protocol is available. It is possible to print your tickets by making use of an IoT Box.'),
+                    });
+                } else {
+                    throw err;
+                }
+            }
+        }
         this.pos.get_order()._printed = true;
     },
     print_xml: function() {
diff --git a/addons/report_intrastat/report/report_intrastat_report.py b/addons/report_intrastat/report/report_intrastat_report.py
index 3ff63b4a4f6..1ca5dfb4bec 100644
--- a/addons/report_intrastat/report/report_intrastat_report.py
+++ b/addons/report_intrastat/report/report_intrastat_report.py
@@ -40,8 +40,8 @@ class ReportIntrastat(models.Model):
                             else 0
                         end) as value,
                     sum(
-                        case when uom.category_id != puom.category_id then (pt.weight * inv_line.quantity)
-                        else (pt.weight * inv_line.quantity * uom.factor) end
+                        case when uom.category_id != puom.category_id then (coalesce(nullif(pp.weight, 0), pt.weight) * inv_line.quantity)
+                        else (coalesce(nullif(pp.weight, 0), pt.weight) * inv_line.quantity * uom.factor) end
                     ) as weight,
                     sum(
                         case when uom.category_id != puom.category_id then inv_line.quantity
diff --git a/addons/website_sale/models/product.py b/addons/website_sale/models/product.py
index 8d33629e927..8b254139a77 100644
--- a/addons/website_sale/models/product.py
+++ b/addons/website_sale/models/product.py
@@ -3,7 +3,7 @@
 from odoo import api, fields, models, tools, _
 import odoo.addons.decimal_precision as dp
 from odoo.tools.translate import html_translate
-from odoo.tools import float_is_zero
+from odoo.tools import float_compare
 
 
 class ProductStyle(models.Model):
@@ -208,8 +208,14 @@ class Product(models.Model):
         for p, p2 in zip(self, self2):
             taxes = partner.property_account_position_id.map_tax(p.taxes_id.sudo().filtered(lambda x: x.company_id == company_id))
             p.website_price = taxes.compute_all(p2.price, pricelist.currency_id, quantity=qty, product=p2, partner=partner)[ret]
-            price_without_pricelist = taxes.compute_all(p.list_price, pricelist.currency_id)[ret]
-            p.website_price_difference = False if float_is_zero(price_without_pricelist - p.website_price, precision_rounding=pricelist.currency_id.rounding) else True
+            # We must convert the price_without_pricelist in the same currency than the
+            # website_price, otherwise the comparison doesn't make sense. Moreover, we show a price
+            # difference only if the website price is lower
+            price_without_pricelist = p.list_price
+            if company_id.currency_id != pricelist.currency_id:
+                price_without_pricelist = company_id.currency_id.compute(price_without_pricelist, pricelist.currency_id)
+            price_without_pricelist = taxes.compute_all(price_without_pricelist, pricelist.currency_id)[ret]
+            p.website_price_difference = True if float_compare(price_without_pricelist, p.website_price, precision_rounding=pricelist.currency_id.rounding) > 0 else False
             p.website_public_price = taxes.compute_all(p2.lst_price, quantity=qty, product=p2, partner=partner)[ret]
 
     @api.multi
diff --git a/addons/website_sale/static/src/js/website_sale.js b/addons/website_sale/static/src/js/website_sale.js
index d699c351db9..4892beef7d1 100644
--- a/addons/website_sale/static/src/js/website_sale.js
+++ b/addons/website_sale/static/src/js/website_sale.js
@@ -88,7 +88,7 @@ odoo.define('website_sale.website_sale', function (require) {
             var product_ids = [];
             var product_dom = $(".js_product .js_add_cart_variants[data-attribute_value_ids]");
             var qty = $(event.target).closest('form').find('input[name="add_qty"]').val();
-            if (!product_dom.length) {
+            if (!product_dom.length || $('body').hasClass('editor_enable')) {
                 return;
             }
             _.each(product_dom, function (prod) {
@@ -129,7 +129,7 @@ odoo.define('website_sale.website_sale', function (require) {
 
         $(oe_website_sale).on("change", ".oe_cart input.js_quantity[data-product-id]", function () {
           var $input = $(this);
-            if ($input.data('update_change')) {
+            if ($input.data('update_change') || $('body').hasClass('editor_enable')) {
                 return;
             }
           var value = parseInt($input.val() || 0, 10);
@@ -198,6 +198,9 @@ odoo.define('website_sale.website_sale', function (require) {
 
         // hack to add and remove from cart with json
         $(oe_website_sale).on('click', 'a.js_add_cart_json', function (ev) {
+            if ($('body').hasClass('editor_enable')) {
+                return;
+            }
             ev.preventDefault();
             var $link = $(ev.currentTarget);
             var $input = $link.parent().find("input");