Improve compatibility with old browsers (#136)

Reviewed-on: #136

backend/web.go

@@ -3,6 +3,7 @@ package main
 import (
 	"errors"
 	"github.com/gin-gonic/gin"
+	"log"
 	"net/http"
 	"strconv"
 )
@@ -26,11 +27,22 @@ func loadWebEndpoints(router *gin.Engine) {
 	router.GET("/completeAllowance", renderCompleteAllowance)
 }
 
+func redirectToPage(c *gin.Context, page string) {
+	redirectToPageStatus(c, page, http.StatusSeeOther)
+}
+
+func redirectToPageStatus(c *gin.Context, page string, status int) {
+	scheme := c.Request.URL.Scheme
+	target := scheme + domain + page
+	c.Redirect(status, target)
+}
+
 func renderLogin(c *gin.Context) {
 	if c.Query("user") != "" {
-		c.SetCookie("user", c.Query("user"), 3600, "/", "localhost", false, true)
+		log.Println("Set cookie for user:", c.Query("user"))
+		c.SetCookie("user", c.Query("user"), 3600, "", "", false, true)
 	}
-	c.Redirect(http.StatusFound, "/")
+	redirectToPage(c, "/")
 }
 
 func renderIndex(c *gin.Context) {
@@ -68,7 +80,7 @@ func renderCreateTask(c *gin.Context) {
 		return
 	}
 
-	c.Redirect(http.StatusFound, "/")
+	redirectToPageStatus(c, "/", http.StatusFound)
 }
 
 func renderCompleteTask(c *gin.Context) {
@@ -85,7 +97,7 @@ func renderCompleteTask(c *gin.Context) {
 		return
 	}
 
-	c.Redirect(http.StatusFound, "/")
+	redirectToPageStatus(c, "/", http.StatusFound)
 }
 
 func renderCreateAllowance(c *gin.Context) {
@@ -122,7 +134,7 @@ func renderCreateAllowance(c *gin.Context) {
 		return
 	}
 
-	c.Redirect(http.StatusFound, "/")
+	redirectToPageStatus(c, "/", http.StatusFound)
 }
 
 func renderCompleteAllowance(c *gin.Context) {
@@ -144,11 +156,12 @@ func renderCompleteAllowance(c *gin.Context) {
 		return
 	}
 
-	c.Redirect(http.StatusFound, "/")
+	redirectToPageStatus(c, "/", http.StatusFound)
 }
 
 func getCurrentUser(c *gin.Context) *int {
 	currentUserStr, err := c.Cookie("user")
+	log.Println("Cookie string:", currentUserStr)
 	if errors.Is(err, http.ErrNoCookie) {
 		renderNoUser(c)
 		return nil
@@ -172,7 +185,7 @@ func getCurrentUser(c *gin.Context) *int {
 
 func unsetUserCookie(c *gin.Context) {
 	c.SetCookie("user", "", -1, "/", "localhost", false, true)
-	c.Redirect(http.StatusFound, "/")
+	redirectToPageStatus(c, "/", http.StatusFound)
 }
 
 func renderNoUser(c *gin.Context) {