diff --git a/src/app/dashapp.jl b/src/app/dashapp.jl
index d745c5e..02c3966 100644
--- a/src/app/dashapp.jl
+++ b/src/app/dashapp.jl
@@ -34,10 +34,10 @@ mutable struct DashApp
     devtools ::DevTools
     callbacks ::Dict{Symbol, Callback}
     inline_scripts ::Vector{String}
-    
-    DashApp(root_path, is_interactive, config, index_string, title = "Dash") = 
+
+    DashApp(root_path, is_interactive, config, index_string, title = "Dash") =
     new(root_path, is_interactive, config, index_string, title, nothing, DevTools(dash_env(Bool, "debug", false)), Dict{Symbol, Callback}(), String[])
-    
+
 end
 
 #only name, index_string and layout are available to set
@@ -70,7 +70,7 @@ get_layout(app::DashApp) = app.layout
 
 function check_index_string(index_string::AbstractString)
     validate_index(
-        "index_string", index_string, 
+        "index_string", index_string,
         [
             "{%app_entry%}"=>r"{%app_entry%}",
             "{%config%}"=>r"{%config%}",
@@ -136,7 +136,7 @@ Available dev_tools environment variables:
     hash requests before failing and displaying a pop up. Default 8.
     env: ``DASH_HOT_RELOAD_MAX_RETRY``
 """
-function enable_dev_tools!(app::DashApp; debug = nothing, 
+function enable_dev_tools!(app::DashApp; debug = nothing,
             dev_tools_ui = nothing,
             dev_tools_props_check = nothing,
             dev_tools_serve_dev_bundles = nothing,
@@ -168,22 +168,22 @@ get_setting(app::DashApp, name::Symbol) = getproperty(app.config, name)
 get_assets_path(app::DashApp) = joinpath(app.root_path, get_setting(app, :assets_folder))
 
 """
-    dash(name::String;
+    dash(;
             external_stylesheets,
             external_scripts,
-            url_base_pathname,        
+            url_base_pathname,
             requests_pathname_prefix,
             routes_pathname_prefix,
             assets_folder,
             assets_url_path,
-            assets_ignore,        
+            assets_ignore,
             serve_locally,
             suppress_callback_exceptions,
-            eager_loading , 
-            meta_tags, 
-            index_string, 
-            assets_external_path, 
-            include_assets_files, 
+            eager_loading ,
+            meta_tags,
+            index_string,
+            assets_external_path,
+            include_assets_files,
             show_undo_redo,
             compress
         )
@@ -202,35 +202,35 @@ If a parameter can be set by an environment variable, that is listed as:
         ``requests_pathname_prefix * assets_url_path * "/" * asset_path``
         where ``asset_path`` is the path to a file inside ``assets_folder``.
         Default ``'assets'`.
-    
+
 - `assets_ignore::String` - [EXPERIMENTAL] A regex, as a string to pass to ``Regex``, for
         assets to omit from immediate loading. Ignored files will still be
         served if specifically requested. You cannot use this to prevent access
-        to sensitive files. 
+        to sensitive files.
     :type assets_ignore: string
 
 -  `assets_external_path::String` - [EXPERIMENTAL] an absolute URL from which to load assets.
         Use with ``serve_locally=false``. Dash can still find js and css to
         automatically load if you also keep local copies in your assets
         folder that Dash can index, but external serving can improve
-        performance and reduce load on the Dash server.        
-        env: `DASH_ASSETS_EXTERNAL_PATH`  
+        performance and reduce load on the Dash server.
+        env: `DASH_ASSETS_EXTERNAL_PATH`
 
 - `include_assets_files::Bool` - [EXPERIMENTAL] Default ``true``, set to ``false`` to prevent
         immediate loading of any assets. Assets will still be served if
         specifically requested. You cannot use this to prevent access
-        to sensitive files. 
-        env: `DASH_INCLUDE_ASSETS_FILES` 
+        to sensitive files.
+        env: `DASH_INCLUDE_ASSETS_FILES`
 
 - `url_base_pathname::String`: A local URL prefix to use app-wide.
         Default ``nothing``. Both `requests_pathname_prefix` and
         `routes_pathname_prefix` default to `url_base_pathname`.
-        env: `DASH_URL_BASE_PATHNAME` 
+        env: `DASH_URL_BASE_PATHNAME`
 
 - `requests_pathname_prefix::String`: A local URL prefix for file requests.
         Defaults to `url_base_pathname`, and must end with
         `routes_pathname_prefix`
-        env: `DASH_REQUESTS_PATHNAME_PREFIX` 
+        env: `DASH_REQUESTS_PATHNAME_PREFIX`
 
 - `routes_pathname_prefix::String`: A local URL prefix for JSON requests.
         Defaults to ``url_base_pathname``, and must start and end
@@ -240,77 +240,77 @@ If a parameter can be set by an environment variable, that is listed as:
 - `serve_locally`: [EXPERIMENTAL] If `true` (default), assets and dependencies (Dash and Component js and css) will be served from local URLs. If `false` Dash will use CDN links where available.
         (Dash and Component js and css) will be served from local URLs.
         If ``false`` we will use CDN links where available.
-    
+
 - `meta_tags::Vector{Dict{String, String}}`: html <meta> tags to be added to the index page.
         Each dict should have the attributes and values for one tag, eg:
         ``Dict("name"=>"description", "content" => "My App")``
-    
+
 - `index_string::String`: Override the standard Dash index page.
         Must contain the correct insertion markers to interpolate various
         content into it depending on the app config and components used.
         See https://dash.plotly.com/external-resources for details.
-    
+
 - `external_scripts::Vector`: Additional JS files to load with the page.
         Each entry can be a String (the URL) or a Dict{String, String} with ``src`` (the URL)
         and optionally other ``<script>`` tag attributes such as ``integrity``
-        and ``crossorigin``.    
+        and ``crossorigin``.
 
 - `external_stylesheets::Vector`: Additional CSS files to load with the page.
         Each entry can be a String (the URL) or a Dict{String, String} with ``href`` (the URL)
         and optionally other ``<link>`` tag attributes such as ``rel``,
-        ``integrity`` and ``crossorigin``.    
+        ``integrity`` and ``crossorigin``.
 
 - `suppress_callback_exceptions::Bool`: Default ``false``: check callbacks to
         ensure referenced IDs exist and props are valid. Set to ``true``
         if your layout is dynamic, to bypass these checks.
         env: `DASH_SUPPRESS_CALLBACK_EXCEPTIONS`
-        
+
 - `show_undo_redo::Bool`: Default ``false``, set to ``true`` to enable undo
         and redo buttons for stepping through the history of the app state.
 
-- `compress::Bool`: Default ``true``, controls whether gzip is used to compress 
+- `compress::Bool`: Default ``true``, controls whether gzip is used to compress
         files and data served by HTTP.jl when supported by the client. Set to
         ``false`` to disable compression completely.
 """
 function dash(;
         external_stylesheets = ExternalSrcType[],
         external_scripts  = ExternalSrcType[],
-        url_base_pathname = dash_env("url_base_pathname"),        
+        url_base_pathname = dash_env("url_base_pathname"),
         requests_pathname_prefix = dash_env("requests_pathname_prefix"),
         routes_pathname_prefix = dash_env("routes_pathname_prefix"),
         assets_folder = "assets",
         assets_url_path = "assets",
-        assets_ignore = "",        
+        assets_ignore = "",
         serve_locally = true,
         suppress_callback_exceptions = dash_env(Bool, "suppress_callback_exceptions", false),
-        eager_loading = false, 
-        meta_tags = Dict{Symbol, String}[], 
-        index_string = default_index, 
-        assets_external_path = dash_env("assets_external_path"), 
-        include_assets_files = dash_env(Bool, "include_assets_files", true), 
+        eager_loading = false,
+        meta_tags = Dict{Symbol, String}[],
+        index_string = default_index,
+        assets_external_path = dash_env("assets_external_path"),
+        include_assets_files = dash_env(Bool, "include_assets_files", true),
         show_undo_redo = false,
         compress = true
 
     )
-                    
-        check_index_string(index_string) 
+
+        check_index_string(index_string)
         config = DashConfig(
             external_stylesheets,
             external_scripts,
             pathname_configs(
-                url_base_pathname,                
+                url_base_pathname,
                 requests_pathname_prefix,
                 routes_pathname_prefix
                 )...,
             assets_folder,
             lstrip(assets_url_path, '/'),
-            assets_ignore,             
-            serve_locally, 
-            suppress_callback_exceptions, 
-            eager_loading, 
-            meta_tags, 
-            assets_external_path, 
-            include_assets_files, 
+            assets_ignore,
+            serve_locally,
+            suppress_callback_exceptions,
+            eager_loading,
+            meta_tags,
+            assets_external_path,
+            include_assets_files,
             show_undo_redo,
             compress
         )