I am kind of a beginner. I have exported my webmap using QGIS2Web and while playing with it, I was able to change the settings of the items already present on the map (for example position, language, zoom levels, etc.) Although, I would like to add some functions to it.

I want to add the Leaflet.Dialog plugin (https://github.com/NBTSolutions/Leaflet.Dialog), but I'm failing somewhere. In my export folder, I added both the .css and .js to the project and imported it with a link and script tag.

I then added this to the index.html :

var dialog = L.control.dialog(options)
          .setContent("<p>Hello! Welcome to your nice new dialog box!</p>")

Why does this code not show anything?

Here is the code to link the plugin :

<link rel="stylesheet" href="css/Leaflet.Dialog.css">
<script src="js/Leaflet.Dialog.js"></script>
  • Really tricky to figure this out. No errors in the browser console? Mar 14, 2019 at 21:45
  • In the browser console, I get the error Uncaught ReferenceError: options is not defined. I edited the post to show you how I linked it. I'm guessing the error is there since it doesn't seem the recognize the command.
    – Marmo
    Mar 15, 2019 at 14:04

1 Answer 1


In the example code you have copied, option is a placeholder for any options listed here:


You put the options as key:value pairs, comma-separated, in braces {}. For example:

var dialog = L.control.dialog({size: [200, 150], position: bottomright})
          .setContent("<p>Hello! Welcome to your nice new dialog box!</p>")

Alternatively, you can just leave out the options completely to get the defaults, as the demo page linked from the plugin repo does:

var dialog = L.control.dialog()

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