Remove / trimming on the end of href (#246)

* fix / trimming

* fix tests

Author: naturboy

src/utils.ts

@@ -2,10 +2,10 @@ import { createMemo, getOwner, runWithOwner } from "solid-js";
 import type { MatchFilter, MatchFilters, Params, PathMatch, Route, SetParams } from "./types";
 
 const hasSchemeRegex = /^(?:[a-z0-9]+:)?\/\//i;
-const trimPathRegex = /^\/+|\/+$/g;
+const trimPathRegex = /^\/+|(\/)\/+$/g;
 
 export function normalizePath(path: string, omitSlash: boolean = false) {
-  const s = path.replace(trimPathRegex, "");
+  const s = path.replace(trimPathRegex, "$1");
   return s ? (omitSlash || /^[?#]/.test(s) ? s : "/" + s) : "";
 }
 

test/utils.spec.ts

@@ -241,7 +241,7 @@ describe("joinPaths should", () => {
   test.each([
     ["/foo", "", "/foo"],
     ["/foo/", "/", "/foo"],
-    ["/foo/", "bar/", "/foo/bar"]
+    ["/foo/", "bar/", "/foo/bar/"]
   ])(`strip trailing '/' (case '%s' and '%s' as '%s')`, (from, to, expected) => {
     const joined = joinPaths(from, to);
     expect(joined).toBe(expected);