diff --git a/examples/data/local.seg.gz b/examples/data/local.seg.gz
new file mode 120000
index 0000000..136aade
--- /dev/null
+++ b/examples/data/local.seg.gz
@@ -0,0 +1 @@
+../local.seg.gz
\ No newline at end of file
diff --git a/examples/local-seg.ipynb b/examples/local-seg.ipynb
index 9c8fca6..403f537 100644
--- a/examples/local-seg.ipynb
+++ b/examples/local-seg.ipynb
@@ -9,7 +9,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": 4,
    "metadata": {
     "collapsed": false,
     "scrolled": true
@@ -19,20 +19,20 @@
      "data": {
       "text/html": [
        "\n",
-       "            <div id=\"igv_5394622\" class=\"igv-js\"></div>\n",
+       "            <div id=\"igv_7278105\" class=\"igv-js\"></div>\n",
        "            <script type=\"text/javascript\">\n",
        "                require([location.origin + Jupyter.contents.base_url + \"nbextensions/igv/igv-jupyter.js\"], function() {\n",
-       "                    var div = $(\"#igv_5394622.igv-js\")[0], options = {\"reference\": {\"cytobandURL\": \"//s3.amazonaws.com/igv.broadinstitute.org/genomes/seq/b37/b37_cytoband.txt\", \"fastaURL\": \"//s3.amazonaws.com/igv.broadinstitute.org/genomes/seq/1kg_v37/human_g1k_v37_decoy.fasta\", \"id\": \"hg19\"}, \"showRuler\": true, \"locus\": \"8:128,751,826-128,751,865\", \"flanking\": 1000, \"tracks\": [{\"type\": \"annotation\", \"indexUrl\": \"//s3.amazonaws.com/igv.broadinstitute.org/annotations/hg19/genes/gencode.v18.collapsed.bed.idx\", \"displayMode\": \"EXPANDED\", \"name\": \"Genes\", \"visibilityWindow\": 10000000, \"sourceType\": \"file\", \"format\": \"bed\", \"order\": 1.7976931348623157e+308, \"url\": \"//s3.amazonaws.com/igv.broadinstitute.org/annotations/hg19/genes/gencode.v18.collapsed.bed\"}], \"showKaryo\": false, \"double_click_delay\": 500, \"showNavigation\": true};\n",
+       "                    var div = $(\"#igv_7278105.igv-js\")[0], options = {\"tracks\": [{\"name\": \"Genes\", \"order\": 1.7976931348623157e+308, \"indexUrl\": \"//s3.amazonaws.com/igv.broadinstitute.org/annotations/hg19/genes/gencode.v18.collapsed.bed.idx\", \"visibilityWindow\": 10000000, \"format\": \"bed\", \"displayMode\": \"EXPANDED\", \"type\": \"annotation\", \"url\": \"//s3.amazonaws.com/igv.broadinstitute.org/annotations/hg19/genes/gencode.v18.collapsed.bed\", \"sourceType\": \"file\"}], \"showCursorTrackingGuide\": true, \"reference\": {\"id\": \"hg19\", \"cytobandURL\": \"//s3.amazonaws.com/igv.broadinstitute.org/genomes/seq/b37/b37_cytoband.txt\", \"fastaURL\": \"//s3.amazonaws.com/igv.broadinstitute.org/genomes/seq/1kg_v37/human_g1k_v37_decoy.fasta\"}, \"showRuler\": true, \"locus\": \"8:128,751,826-128,751,865\", \"showCenterGuide\": true, \"flanking\": 1000, \"doubleClickDelay\": 500, \"showKaryo\": false, \"showNavigation\": true, \"hideIdeogram\": false};\n",
        "                    igv.createBrowser(div, options);\n",
        "                });\n",
        "            </script>\n",
        "            "
       ],
       "text/plain": [
-       "<igv.IGV at 0x10648f358>"
+       "<igv.IGV at 0x106815400>"
       ]
      },
-     "execution_count": 1,
+     "execution_count": 4,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -85,7 +85,7 @@
        "\n",
        "            <script type=\"text/javascript\">\n",
        "                require([location.origin + Jupyter.contents.base_url + \"nbextensions/igv/igv-jupyter.js\"], function() {\n",
-       "                    igv.browser.loadTrack({\"name\": \"Local SEG File\", \"indexed\": false, \"format\": \"seg\", \"url\": \"//localhost:8888/files/local.seg.gz\"});\n",
+       "                    igv.browser.loadTrack({\"url\": \"//localhost:8888/files/local.seg.gz\", \"name\": \"Local SEG File\", \"indexed\": false, \"format\": \"seg\"});\n",
        "                });\n",
        "            </script>\n",
        "            "
@@ -181,7 +181,7 @@
        "\n",
        "            <script type=\"text/javascript\">\n",
        "                require([location.origin + Jupyter.contents.base_url + \"nbextensions/igv/igv-jupyter.js\"], function() {\n",
-       "                    igv.browser.loadTrack({\"indexed\": false, \"name\": \"Local SEG File\", \"format\": \"seg\", \"url\": \"//localhost:8888/files/IGVDevelopment/igv.js-jupyter/examples/data/local.seg.gz\"});\n",
+       "                    igv.browser.loadTrack({\"name\": \"Local SEG File\", \"indexed\": false, \"format\": \"seg\", \"url\": \"//localhost:8888/files/IGVDevelopment/igv.js-jupyter/examples/data/local.seg.gz\"});\n",
        "                });\n",
        "            </script>\n",
        "            "
@@ -213,9 +213,9 @@
  "metadata": {
   "anaconda-cloud": {},
   "kernelspec": {
-   "display_name": "Python [Root]",
+   "display_name": "Python 3",
    "language": "python",
-   "name": "Python [Root]"
+   "name": "python3"
   },
   "language_info": {
    "codemirror_mode": {