Enable serving framed kepler.gl-jupyter over https

Remove HTTP protocol specifier to select the most appropriate protocol

This is needed when kepler.gl is served on a website served via HTTPS. This is needed since chrome blocks loading of insecure resources when the page is served via HTTPS (Mixed content).

Signed-off-by: Peder Voldnes Langdal <peder.github@langd.al>

bindings/kepler.gl-jupyter/js/lib/keplergl/components/app.js

@@ -100,11 +100,11 @@ function App() {
           <title>Kepler.gl Jupyter</title>
           <link
             rel="stylesheet"
-            href="http://d1a3f4spazzrp4.cloudfront.net/kepler.gl/uber-fonts/4.0.0/superfine.css"
+            href="//d1a3f4spazzrp4.cloudfront.net/kepler.gl/uber-fonts/4.0.0/superfine.css"
           />
           <link
             rel="stylesheet"
-            href="http://api.tiles.mapbox.com/mapbox-gl-js/v1.1.1/mapbox-gl.css"
+            href="//api.tiles.mapbox.com/mapbox-gl-js/v1.1.1/mapbox-gl.css"
           />
           <style type="text/css">
             {`font-family: ff-clan-web-pro, 'Helvetica Neue', Helvetica, sans-serif;