diff --git a/Dockerfile b/Dockerfile
index 37370f1..e7d2754 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,7 +10,6 @@ EXPOSE 5000
 ENV PYTHONUNBUFFERED=1
 
 # Environment variables
-ENV CACHE_PATH=""
 ENV DATABASE_URL=""
 ENV GOOGLE_MAPS_API_KEY=""
 ENV MAIL_DEFAULT_SENDER=""
@@ -18,7 +17,6 @@ ENV MAIL_PASSWORD=""
 ENV MAIL_PORT=""
 ENV MAIL_SERVER=""
 ENV MAIL_USERNAME=""
-ENV PROJECT_ENABLE_CRAWLING=""
 ENV SECRET_KEY=""
 ENV SECURITY_PASSWORD_HASH=""
 ENV SERVER_NAME=""
diff --git a/project/__init__.py b/project/__init__.py
index 74d7a37..d7ddb54 100644
--- a/project/__init__.py
+++ b/project/__init__.py
@@ -140,6 +140,7 @@ config_oauth(app)
 import project.api
 
 # Command line
+import project.cli.cache
 import project.cli.dump
 import project.cli.event
 import project.cli.seo
diff --git a/project/cli/cache.py b/project/cli/cache.py
new file mode 100644
index 0000000..f29781b
--- /dev/null
+++ b/project/cli/cache.py
@@ -0,0 +1,17 @@
+import click
+from flask.cli import AppGroup
+
+from project import app, img_path
+from project.utils import clear_files_in_dir
+
+cache_cli = AppGroup("cache")
+
+
+@cache_cli.command("clear-images")
+def clear_images():
+    click.echo("Clearing images..")
+    clear_files_in_dir(img_path)
+    click.echo("Done.")
+
+
+app.cli.add_command(cache_cli)
diff --git a/project/utils.py b/project/utils.py
index a3bb965..bf3e7fa 100644
--- a/project/utils.py
+++ b/project/utils.py
@@ -29,6 +29,13 @@ def make_dir(path):
         os.umask(original_umask)
 
 
+def clear_files_in_dir(path):
+    with os.scandir(path) as entries:
+        for entry in entries:
+            if entry.is_file() or entry.is_symlink():
+                os.remove(entry.path)
+
+
 def split_by_crlf(s):
     return [v for v in s.splitlines() if v]
 
diff --git a/project/views/image.py b/project/views/image.py
index 57a30b9..30a6814 100644
--- a/project/views/image.py
+++ b/project/views/image.py
@@ -23,10 +23,6 @@ def image(id):
     if "s" in request.args:
         width = int(request.args["s"])
         height = width
-    elif "w" in request.args:
-        width = int(request.args["w"])
-    elif "h" in request.args:
-        height = int(request.args["h"])
 
     # Generate file name
     extension = image.encoding_format.split("/")[-1] if image.encoding_format else "png"
diff --git a/tests/cli/test_cache.py b/tests/cli/test_cache.py
new file mode 100644
index 0000000..a88a7c0
--- /dev/null
+++ b/tests/cli/test_cache.py
@@ -0,0 +1,10 @@
+def test_clear_images(client, seeder, app, utils):
+    user_id, admin_unit_id = seeder.setup_base()
+    image_id = seeder.upsert_default_image()
+
+    url = utils.get_url("image", id=image_id)
+    utils.get_ok(url)
+
+    runner = app.test_cli_runner()
+    result = runner.invoke(args=["cache", "clear-images"])
+    assert "Done." in result.output
diff --git a/tests/views/test_image.py b/tests/views/test_image.py
index 6189742..615675a 100644
--- a/tests/views/test_image.py
+++ b/tests/views/test_image.py
@@ -6,14 +6,12 @@ from project import img_path
 
 
 @pytest.mark.parametrize("size", [None, 100])
-@pytest.mark.parametrize("width", [None, 100])
-@pytest.mark.parametrize("height", [None, 100])
-def test_read(app, seeder, utils, size, width, height):
+def test_read(app, seeder, utils, size):
     user_id, admin_unit_id = seeder.setup_base()
     image_id = seeder.upsert_default_image()
 
     shutil.rmtree(img_path, ignore_errors=True)
 
-    url = utils.get_url("image", id=image_id, s=size, w=width, h=height)
+    url = utils.get_url("image", id=image_id, s=size)
     utils.get_ok(url)
     utils.get_ok(url)  # cache