Added support for keeping trailing slashes in FkRegex.

src/main/java/org/takes/facets/fork/FkRegex.java

@@ -94,6 +94,11 @@ public final class FkRegex implements Fork {
      */
     private final Scalar<TkRegex> target;
 
+    /**
+     * Remove trailing slashes is optional
+     */
+    private boolean removeTrailingSlash = true;
+
     /**
      * Ctor.
      * @param ptn Pattern
@@ -195,10 +200,20 @@ public FkRegex(final Pattern ptn, final Scalar<TkRegex> tke) {
         this.target = tke;
     }
 
+    /**
+     * Allows disabling the standard way for handling trailing slashes.
+     * @param removeTrailingSlash
+     * @return
+     */
+    public FkRegex setRemoveTrailingSlash(boolean removeTrailingSlash) {
+        this.removeTrailingSlash = removeTrailingSlash;
+        return this;
+    }
+
     @Override
     public Opt<Response> route(final Request req) throws Exception {
         String path = new RqHref.Base(req).href().path();
-        if (path.length() > 1 && path.charAt(path.length() - 1) == '/') {
+        if (removeTrailingSlash && path.length() > 1 && path.charAt(path.length() - 1) == '/') {
             path = path.substring(0, path.length() - 1);
         }
         final Matcher matcher = this.pattern.matcher(path);

src/test/java/org/takes/facets/fork/FkRegexTest.java

@@ -69,4 +69,20 @@ public void removesTrailingSlash() throws Exception {
         );
     }
 
+    /**
+     * FkRegex can remove trailing slash from URI.
+     * @throws Exception If some problem inside
+     */
+    @Test
+    public void keepsTrailingSlash() throws Exception {
+        MatcherAssert.assertThat(
+                new FkRegex("/h/tail/", new TkEmpty())
+                        .setRemoveTrailingSlash(false)
+                        .route(
+                        new RqFake("POST", "/h/tail/")
+                ).has(),
+                Matchers.is(true)
+        );
+    }
+
 }