Get correct opengraph image

	Fix URLs writing

srv.js

@@ -107,7 +107,7 @@ app.get('/generate.png', function (req, res) {
 });
 
 app.get('/', function(req, res) {
-  res.render('index', {host: req.headers.host});
+  res.render('index', {host: req.headers.host, imageParams: req._parsedUrl.query});
 })
 
 app.listen(process.env.PORT || config.port || 80);

static/canvas.js

@@ -94,11 +94,12 @@ let draw = function() {
 
   // Edit URL
   history.replaceState('', '', window.location.pathname + '?'
-		       + encodeURIComponent('bg-color=' + bgColor
-					    + '&fg-color=' + fgColor
-					    + '&text=' + fillText
-					    + '&font=' + font
-					    + '&signature=' + signature)
+		       + 'bg-color=' + encodeURIComponent(bgColor)
+		       + '&fg-color=' + encodeURIComponent(fgColor)
+		       + '&text=' + encodeURIComponent(fillText)
+		       + '&font=' + encodeURIComponent(font)
+		       + '&icon=' + encodeURIComponent(icon)
+		       + '&signature=' + encodeURIComponent(signature)
 		       + window.location.hash);
 }
 

views/index.ejs

@@ -6,7 +6,7 @@
     <meta property="og:title" content="Soutenez La Quadrature du Net !" />
     <meta property="og:description" content="Soutenez La Quadrature du Net !" />
     <meta property="og:url" content="http://<%= host %>" />
-    <meta property="og:image" content="http://<%= host %>/generate.png" />
+    <meta property="og:image" content="http://<%= host %>/generate.png?<%= imageParams %>" />
     <link rel="stylesheet" href="./bootstrap-grid.min.css" />
     <link rel="stylesheet" href="./font-awesome.min.css" />
     <link rel="stylesheet" href="./style.css" />