解决【营销计划-C端】key码只绑定一个商品，在商品详情页暂停兑换码，点击立即兑换页面跳转错误

exchange.html

@@ -292,10 +292,13 @@
                   window.location.replace('./homepage.html');
                 }, 3000);
               } else {
-                let backUrl = window.history.length;
+                // let backUrl = window.history.length;
-                if (backUrl) {
+                // if (backUrl) {
-                  history.go(-backUrl + 1);
+                //   history.go(-backUrl + 1);
-                }
+                // }
+                /*跳转起始页面*/
+                let entryLink=sessionStorage.getItem('entryLink');
+                window.location.replace(entryLink);  
               }
             }
           }

index.html

@@ -150,7 +150,9 @@
 								sessionStorage.setItem('token', res.data.token);
 								sessionStorage.setItem('haskey', keyCode);
 								this.openDialog('正在加载商品...');
+								sessionStorage.setItem('entryLink',window.location.href);//存储起始页链接
 								window.location.replace("/homepage.html");
+								
 							} else {
 								self.openErrorDialog(res.message);
 							}
@@ -233,6 +235,7 @@
 							sessionStorage.setItem('key', self.key);
 							sessionStorage.setItem('token', res.data.token);
 							this.openDialog('正在加载商品...');
+							sessionStorage.setItem('entryLink',window.location.href);//存储起始页链接
 							setTimeout(() => {
 								window.location.href = './homepage.html';
 							}, 2000);
@@ -278,6 +281,7 @@
 							if (istoGoods) {
 								sessionStorage.setItem('getTokenList', JSON.stringify(getTokenList));
 								this.openDialog('正在加载商品...');
+								sessionStorage.setItem('entryLink',window.location.href);//存储起始页链接
 								setTimeout(() => {
 									window.location.href = './homepage.html';
 								}, 2000);