diff --git a/doc/js_tutorials/js_setup/js_setup/js_setup.markdown b/doc/js_tutorials/js_setup/js_setup/js_setup.markdown
index 435f06fe02..55fd40fb7e 100644
--- a/doc/js_tutorials/js_setup/js_setup/js_setup.markdown
+++ b/doc/js_tutorials/js_setup/js_setup/js_setup.markdown
@@ -127,6 +127,13 @@ Building OpenCV.js from Source
     python ./platforms/js/build_js.py build_js --build_test
     @endcode
 
+-#  [optional] To enable OpenCV contrib modules append `--cmake_option="-DOPENCV_EXTRA_MODULES_PATH=/path/to/opencv_contrib/modules/"`
+
+    For example:
+    @code{.bash}
+    python ./platforms/js/build_js.py build_js --cmake_option="-DOPENCV_EXTRA_MODULES_PATH=opencv_contrib/modules"
+    @endcode
+
 Running OpenCV.js Tests
 ---------------------------------------
 
diff --git a/modules/js/generator/embindgen.py b/modules/js/generator/embindgen.py
index 6e2bac71a1..7eddb11ba2 100644
--- a/modules/js/generator/embindgen.py
+++ b/modules/js/generator/embindgen.py
@@ -634,8 +634,10 @@ class JSWrapperGenerator(object):
                     ret_type = type_dict[ptr_type]
             for key in type_dict:
                 if key in ret_type:
-                    ret_type = ret_type.replace(key, type_dict[key])
-
+                    # Replace types. Instead of ret_type.replace we use regular
+                    # expression to exclude false matches.
+                    # See https://github.com/opencv/opencv/issues/15514
+                    ret_type = re.sub('(^|[^\w])' + key + '($|[^\w])', type_dict[key], ret_type)
             if variant.constret and ret_type.startswith('const') == False:
                 ret_type = 'const ' + ret_type
             if variant.refret and ret_type.endswith('&') == False:
diff --git a/platforms/js/opencv_js.config.py b/platforms/js/opencv_js.config.py
index 72efd46faf..6e4677f78b 100644
--- a/platforms/js/opencv_js.config.py
+++ b/platforms/js/opencv_js.config.py
@@ -74,9 +74,12 @@ aruco = {'': ['detectMarkers', 'drawDetectedMarkers', 'drawAxis', 'estimatePoseS
         'aruco_Board': ['create'],
         'aruco_GridBoard': ['create', 'draw'],
         'aruco_CharucoBoard': ['create', 'draw'],
+        'aruco_DetectorParameters': ['create']
         }
 
-calib3d = {'': ['findHomography', 'calibrateCameraExtended', 'drawFrameAxes', 'estimateAffine2D', 'getDefaultNewCameraMatrix', 'initUndistortRectifyMap', 'Rodrigues']}
+calib3d = {'': ['findHomography', 'calibrateCameraExtended', 'drawFrameAxes', 'estimateAffine2D', \
+                'getDefaultNewCameraMatrix', 'initUndistortRectifyMap', 'Rodrigues', \
+                'solvePnP', 'solvePnPRansac', 'solvePnPRefineLM']}
 
 
 white_list = makeWhiteList([core, imgproc, objdetect, video, dnn, features2d, photo, aruco, calib3d])