automatically start downloading the screenshot

frontend/src/Metamaps/GlobalUI/ImportDialog.js

@@ -7,6 +7,7 @@ import outdent from 'outdent'
 import ImportDialogBox from '../../components/ImportDialogBox'
 
 import PasteInput from '../PasteInput'
+import Map from '../Map'
 
 const ImportDialog = {
   openLightbox: null,
@@ -32,7 +33,7 @@ const ImportDialog = {
     ImportDialog.openLightbox('import-dialog')
   },
   hide: function() {
-    ImportDialog.closeLightbox('import-dialog')
+    ImportDialog.closeLightbox()
   },
   downloadScreenshot: function() {
     ImportDialog.hide()

frontend/src/Metamaps/Map/index.js

@@ -264,8 +264,14 @@ const Map = {
 
     var downloadMessage = outdent`
       Captured map screenshot!
-      <a href="${canvas.canvas.toDataURL()}" download="${filename}">DOWNLOAD</a>`
+      <a id="map-screenshot-download-link"
+         href="${canvas.canvas.toDataURL()}"
+         download="${filename}"
+      >
+        DOWNLOAD
+      </a>`
     GlobalUI.notifyUser(downloadMessage)
+    $('#map-screenshot-download-link').click()
   },
   uploadMapScreenshot: () => {
     const canvas = Map.getMapCanvasForScreenshots()