diff --git a/web/static/js/main.js b/web/static/js/main.js
index 7ec6146..cf75418 100644
--- a/web/static/js/main.js
+++ b/web/static/js/main.js
@@ -23,14 +23,11 @@
  * ------------------------
  *
  * Lots of machine-generated micro-optimizations. Most are unconsequential.
- * The complex exporting pattern is ~ technical debt. Simplify it if you can.
  */
 
 (function () {
-    // let TimeSeries;
-    // let Orbits;
     const global = typeof exports !== 'undefined' && exports || this;
-    const GOLDEN_RATIO = 2 / (1 + Math.sqrt(5));
+    const GOLDEN_RATIO = 2 / (1 + Math.sqrt(5)); // 0.618…
 
     class Target {
         constructor(slug, name, config) {
@@ -51,12 +48,30 @@
     const INPUT_TIME_FORMAT = "YYYY-MM-DD";
 
     class SpaceWeather {
+        /**
+         * The main app, instantiated from an inline script.
+         * It defaults to an interval starting two months ago,
+         * and ending in a month. (both at midnight)
+         * @param configuration
+         */
         constructor(configuration) {
             const that = this;
             this.configuration = configuration;
             this.parameters = {};
             this.targets = {};
-            console.info("©2017\n  _   _      _ _       ____\n | | | | ___| (_) ___ |  _ \\ _ __ ___  _ __   __ _\n | |_| |/ _ \\ | |/ _ \\| |_) | '__/ _ \\| '_ \\ / _` |\n |  _  |  __/ | | (_) |  __/| | | (_) | |_) | (_| |\n |_| |_|\\___|_|_|\\___/|_|_  |_|_ \\___/| .__/ \\__,_|\n | |__  _   _   / ___|  _ \\|  _ \\|  _ \\_|\n | '_ \\| | | | | |   | | | | |_) | |_) |\n | |_) | |_| | | |___| |_| |  __/|  __/\n |_.__/ \\__, |  \\____|____/|_|   |_|\n        |___/\n\nThe full source of this website is available at :\nhttps://gitlab.irap.omp.eu/CDPP/SPACEWEATHERONLINE");
+            console.info("©2017\n" +
+                "  _   _      _ _       ____\n" +
+                " | | | | ___| (_) ___ |  _ \\ _ __ ___  _ __   __ _\n" +
+                " | |_| |/ _ \\ | |/ _ \\| |_) | '__/ _ \\| '_ \\ / _` |\n" +
+                " |  _  |  __/ | | (_) |  __/| | | (_) | |_) | (_| |\n" +
+                " |_| |_|\\___|_|_|\\___/|_|_  |_|_ \\___/| .__/ \\__,_|\n" +
+                " | |__  _   _   / ___|  _ \\|  _ \\|  _ \\_|\n" +
+                " | '_ \\| | | | | |   | | | | |_) | |_) |\n" +
+                " | |_) | |_| | | |___| |_| |  __/|  __/\n" +
+                " |_.__/ \\__, |  \\____|____/|_|   |_|\n" +
+                "        |___/\n\n" +
+                "The full source of this website is available at :\n" +
+                "https://gitlab.irap.omp.eu/CDPP/SPACEWEATHERONLINE");
 
             let targets_configs = [];
             for (let k in this.configuration.targets) {
@@ -78,7 +93,6 @@
          * @param stopped_at string
          */
         init(started_at, stopped_at) {
-            // "This is called by the inline bootstrap javascript code.\nThis ain't in the constructor because it might return a Promise later on.\n(for the loader, for example)";
             const app = this;
 
             started_at = moment(started_at).utc().hours(0).minutes(0).seconds(0);
@@ -1180,15 +1194,14 @@
             this.svg.select('.x.axis').attr('transform', `translate(0,${height})`);
             if (animate) {
                 t = this.svg.transition().duration(750);
-                // t1 = this.svg.transition().duration(4750);
                 this.svg.select('.x.axis').transition(t).call(this.xAxis);
                 this.svg.select('.y.axis').transition(t).call(this.yAxis);
             } else {
                 this.svg.select('.x.axis').call(this.xAxis);
                 this.svg.select('.y.axis').call(this.yAxis);
             }
-            this.xAxisTitle.attr("x", width / 2).attr("y", 37);
-            this.yAxisTitle.attr("x", -1 * height / 2).attr("y", -30);
+            this.xAxisTitle.attr("x", width / 2.0).attr("y", 37);
+            this.yAxisTitle.attr("x", -1 * height / 2.0).attr("y", -30);
             return this;
         }
 
@@ -1221,8 +1234,8 @@
             a = config['orbit']['a'];
             b = config['orbit']['b'];
             c = Math.sqrt(a * a - b * b);
-            cx = width / 2 - c;
-            cy = height / 2;
+            cx = width / 2.0 - c;
+            cy = height / 2.0;
             orbit_ellipse = el['orbit_ellipse'];
             if (animate) {
                 t = this.svg.transition().duration(750);
@@ -1334,6 +1347,8 @@
 
     Orbits.prototype.bisectDate = d3.bisector(d => d.t).left;
 
+    ///////////////////////////////////////////////////////////////////////////
+
     global.SpaceWeather = SpaceWeather;
     global.TimeSeries = TimeSeries;
     global.Orbits = Orbits;
--
libgit2 0.21.2