No match path param with ignoreTrailingSlash

index.js

@@ -421,7 +421,8 @@ Router.prototype.find = function find (method, path, version) {
         return this._getWildcardNode(wildcardNode, method, originalPath, pathLenWildcard)
       }
 
-      if (originalPath.indexOf('/' + previousPath) === -1) {
+      var goBack = this.ignoreTrailingSlash ? previousPath : '/' + previousPath
+      if (originalPath.indexOf(goBack) === -1) {
         // we need to know the outstanding path so far from the originalPath since the last encountered "/" and assign it to previousPath.
         // e.g originalPath: /aa/bbb/cc, path: bb/cc
         // outstanding path: /bbb/cc

test/issue-145.test.js

@@ -0,0 +1,24 @@
+'use strict'
+
+const t = require('tap')
+const FindMyWay = require('../')
+
+t.test('issue-145', (t) => {
+  t.plan(8)
+
+  const findMyWay = FindMyWay({ ignoreTrailingSlash: true })
+
+  const fixedPath = function staticPath () {}
+  const varPath = function parameterPath () {}
+  findMyWay.on('GET', '/a/b', fixedPath)
+  findMyWay.on('GET', '/a/:pam/c', varPath)
+
+  t.equals(findMyWay.find('GET', '/a/b').handler, fixedPath)
+  t.equals(findMyWay.find('GET', '/a/b/').handler, fixedPath)
+  t.equals(findMyWay.find('GET', '/a/b/c').handler, varPath)
+  t.equals(findMyWay.find('GET', '/a/b/c/').handler, varPath)
+  t.equals(findMyWay.find('GET', '/a/foo/c').handler, varPath)
+  t.equals(findMyWay.find('GET', '/a/foo/c/').handler, varPath)
+  t.notOk(findMyWay.find('GET', '/a/c'))
+  t.notOk(findMyWay.find('GET', '/a/c/'))
+})