Performance bug - in some cases data load for CRAM files is triggered…

… prematurely, outside the maximum visibility window. See #1883

Version bump

js/trackView.js

@@ -422,7 +422,7 @@ class TrackView {
         const viewportsToRepaint = visibleViewports.filter(vp => vp.needsRepaint()).filter(viewport => viewport.checkZoomIn())
 
         // Get viewports that require a data load
-        const viewportsToReload = visibleViewports.filter(viewport => viewport.needsReload())
+        const viewportsToReload = visibleViewports.filter(viewport => viewport.checkZoomIn()).filter(viewport => viewport.needsReload())
 
         // Trigger viewport to load features needed to cover current genomic range
         // NOTE: these must be loaded synchronously, do not user Promise.all,  not all file readers are thread safe

js/version.js

@@ -1,4 +1,4 @@
-const _version = "3.0.4"
+const _version = "3.0.5"
 function version() {
     return _version
 }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "igv",
-  "version": "3.0.4",
+  "version": "3.0.5",
   "main": "dist/igv.esm.js",
   "browser": "dist/igv.js",
   "module": "dist/igv.esm.js",