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JBrowse - client-side genome browser
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<html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>JBrowse 1.14.0 release - iframe-less embedding, BigBed support · JBrowse</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta name="description" content="JBrowse 1.14.0 has been released!"/><meta name="docsearch:language" content="en"/><meta property="og:title" content="JBrowse 1.14.0 release - iframe-less embedding, BigBed support · JBrowse"/><meta property="og:type" content="website"/><meta property="og:url" content="https://jbrowse.org/blog/2018/04/18/jbrowse-1-14-0-release-index.html"/><meta property="og:description" content="JBrowse 1.14.0 has been released!"/><meta name="twitter:card" content="summary"/><link rel="shortcut icon" href="/img/favicon.ico"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/default.min.css"/><link rel="alternate" type="application/atom+xml" 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href="/blog/2019/04/10/jbrowse-1-16-4.html">JBrowse 1.16.4 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2019/02/20/jbrowse-1-16-3.html">JBrowse 1.16.3 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2019/01/31/jbrowse-1-16-2.html">JBrowse 1.16.2 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2018/12/27/jbrowse-1-16-1.html">JBrowse 1.16.1 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2018/12/13/jbrowse-1-16-0.html">JBrowse 1.16.0 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2018/10/05/jbrowse-1-15-4.html">JBrowse 1.15.4 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2018/08/29/jbrowse-1-15-3.html">JBrowse 1.15.3 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2018/08/16/jbrowse-1.15.2-maintenance-release-index.html">JBrowse 1.15.2 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2018/08/01/jbrowse-1-15-1-index.html">JBrowse 1.15.1 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2018/07/19/jbrowse-1-15-0-release-index.html">JBrowse 1.15.0 release - CRAM support, CSI indexes, and on the desktop!</a></li><li class="navListItem"><a class="navItem" href="/blog/2018/06/04/jbrowse-1-14-2-index.html">JBrowse 1.14.2 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2018/05/02/jbrowse-1-14-1-maintenance-release-index.html">JBrowse 1.14.1 maintenance release</a></li><li class="navListItem navListItemActive"><a class="navItem" href="/blog/2018/04/18/jbrowse-1-14-0-release-index.html">JBrowse 1.14.0 release - iframe-less embedding, BigBed support</a></li><li class="navListItem"><a class="navItem" href="/blog/2018/03/28/jbrowse-1-13-1-maintenance-release-index.html">JBrowse 1.13.1 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2018/03/15/jbrowse-1-13-0-release-index.html">JBrowse 1.13.0 release - now with webpack!</a></li><li class="navListItem"><a class="navItem" href="/blog/2018/02/28/jbrowse-1-12-5-maintenance-release-index.html">JBrowse 1.12.5 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2018/02/14/jbrowse-1-12-4-maintenance-release-index.html">JBrowse 1.12.4 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2017/05/02/jbrowse-1-12-3-index.html">JBrowse-1.12.3: Maintenance Release</a></li><li class="navListItem"><a class="navItem" href="/blog/2016/06/03/gsoc-students-do-cool-jbrowse-projects-index.html">GSoC Students Do Cool JBrowse Projects</a></li><li class="navListItem"><a class="navItem" href="/blog/2016/03/01/jbrowse-1-12-1-index.html">JBrowse-1.12.1: Maintenance Release</a></li><li class="navListItem"><a class="navItem" href="/blog/2016/02/25/state-of-the-browser-2016-index.html">State of the Browser, 2016</a></li><li class="navListItem"><a class="navItem" href="/blog/2015/12/17/jbrowse-1-12-0-index.html">JBrowse-1.12.0: Open new genome from FASTA, in-line refseqs, NeatFeatures, Desktop</a></li><li class="navListItem"><a class="navItem" href="/blog/2015/02/12/jbrowse-1-11-6-index.html">JBrowse-1.11.6 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2014/09/04/jbrowse-1-11-5-index.html">JBrowse-1.11.5 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2014/05/14/jbrowse-1-11-4-maintenance-release-index.html">JBrowse-1.11.4 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2014/03/07/jbrowse-1-11-3-index.html">JBrowse 1.11.3 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2014/02/12/tutorial-exploring-structural-variation-index.html">Tutorial: exploring structural variation using JBrowse, from the tomato 150+ re-seq project</a></li><li class="navListItem"><a class="navItem" href="/blog/2014/02/10/jbrowse-1-11-2-index.html">JBrowse 1.11.2 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2014/01/07/jbrowse-1-11-1-index.html">JBrowse 1.11.1 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/12/19/jbrowse-1-11-0-index.html">JBrowse 1.11.0: hierarchical track selector, easier configuration, summary mode</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/12/10/jbrowse-1-10-12-index.html">JBrowse 1.10.12 maintenance release (please upgrade!)</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/12/03/jbrowse-1-10-11-index.html">JBrowse 1.10.11 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/11/21/jbrowse-1-10-10-index.html">JBrowse 1.10.10 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/11/08/jbrowse-1-10-9-index.html">JBrowse 1.10.9 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/10/25/jbrowse-1-10-8-index.html">JBrowse 1.10.8 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/10/15/jbrowse-1-10-7-index.html">JBrowse 1.10.7 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/10/07/jbrowse-1-10-6-index.html">JBrowse 1.10.6 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/10/03/jbrowse-1-10-5-index.html">JBrowse 1.10.5 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/09/23/jbrowse-1-10-4-index.html">JBrowse 1.10.4 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/09/04/jbrowse-1-10-3-index.html">JBrowse 1.10.3 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/08/15/jbrowse-1-10-2-index.html">JBrowse 1.10.2 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/08/06/jbrowse-1-10-1-maintenance-release-index.html">JBrowse 1.10.1 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/07/30/jbrowse-1-10-0-index.html">JBrowse 1.10.0: Combination tracks, better feature tracks, more glyphs, SPARQL support, and track pinning!</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/07/05/jbrowse-1-9-8-index.html">JBrowse 1.9.8 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/07/02/about-jbrowse-version-numbers-index.html">About JBrowse version numbers</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/06/25/jbrowse-1-9-7-maintenance-release-index.html">JBrowse 1.9.7 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/06/18/jbrowse-1-9-6-maintenance-release-index.html">JBrowse 1.9.6 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/06/12/jbrowse-1-9-5-index.html">JBrowse 1.9.5 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/05/22/jbrowse-1-9-4-index.html">JBrowse 1.9.4 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/05/09/jbrowse-1-9-3-index.html">JBrowse 1.9.3 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/05/02/jbrowse-1-9-2-index.html">JBrowse 1.9.2 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/04/25/jbrowse-1-9-1-index.html">JBrowse 1.9.1 maintenance release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/04/16/jbrowse-1-9-0-index.html">JBrowse 1.9.0: VCF support, dataset switching, wiggle track dynamic scaling, REST backend</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/02/12/jbrowse-1-8-1-bugfix-release-index.html">JBrowse 1.8.1 bugfix release</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/01/31/jbrowse-1-8-0-index.html">JBrowse 1.8.0: opens local files, new BAM track types, new plugin system</a></li><li class="navListItem"><a class="navItem" href="/blog/2013/01/10/jbrowse-1-7-6-bugfix-release-index.html">JBrowse 1.7.6 bugfix release</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/12/12/jbrowse-1-7-5-bugfix-release-index.html">JBrowse 1.7.5 bugfix release</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/12/06/jbrowse-1-7-4-bugfix-release-index.html">JBrowse 1.7.4 bugfix release</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/11/28/jbrowse-1-7-3-bugfix-release-index.html">JBrowse 1.7.3 bugfix release</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/11/09/jbrowse-1-7-2-bugfix-release-index.html">JBrowse 1.7.2 bugfix release</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/11/07/jbrowse-1-7-1-bugfix-release-index.html">JBrowse 1.7.1 bugfix release</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/11/05/jbrowse-1-7-0-index.html">JBrowse 1.7.0, now with data export, direct BAM display, and much more</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/10/26/jbrowse-1-6-5-bugfix-release-index.html">JBrowse 1.6.5 bugfix release</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/10/16/jbrowse-1-6-4-bugfix-release-index.html">JBrowse 1.6.4 bugfix release</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/09/28/jbrowse-1-6-3-bugfix-release-index.html">JBrowse 1.6.3 bugfix release</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/09/10/jbrowse-1-6-2-bugfix-release-index.html">JBrowse 1.6.2 bugfix release</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/09/07/rbuels-and-jbrowse-at-the-semantic-web-biohackathon-2012-index.html">@rbuels and JBrowse at the Semantic Web BioHackathon 2012</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/08/28/jbrowse-1-6-1-bugfix-release-index.html">JBrowse 1.6.1 bugfix release</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/08/25/jbrowse-1-6-0-released-includes-feature-descriptions-and-more-index.html">JBrowse 1.6.0 released, includes feature descriptions and more!</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/08/13/jbrowse-1-5-0-released-includes-direct-bigwig-access-index.html">JBrowse 1.5.0 released, includes direct BigWig access!</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/07/12/jbrowse-1-4-2-released-index.html">JBrowse 1.4.2 released</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/07/10/jbrowse-1-4-1-released-index.html">JBrowse 1.4.1 released</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/06/14/jbrowse-1-4-0-released-includes-faceted-track-selection-index.html">JBrowse 1.4.0 released, includes faceted track selection!</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/05/07/poliovirus-xrate-demo-by-oscar-westesson-index.html">Poliovirus / XRate demo by Oscar Westesson</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/04/19/jbrowse-1-3-1-released-index.html">JBrowse 1.3.1 released</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/04/13/jbrowse-1-3-0-index.html">JBrowse 1.3.0, a major release!</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/03/25/jbrowse-1-2-2-released-index.html">JBrowse 1.2.2 released</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/03/22/hg19-tarball-updated-to-jbrowse-1-2-1-index.html">hg19 tarball updated to JBrowse 1.2.1</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/03/16/jbrowse-in-google-summer-of-code-2012-2-index.html">JBrowse in Google Summer of Code 2012</a></li><li class="navListItem"><a class="navItem" href="/blog/2012/01/13/new-jbrowse-lead-developer-index.html">New JBrowse Lead Developer</a></li><li class="navListItem"><a class="navItem" href="/blog/2011/09/16/dna-sequencing-on-your-iphone-theres-an-app-for-that-index.html">DNA sequencing on your iPhone? There's an app for that</a></li><li class="navListItem"><a class="navItem" href="/blog/2011/09/15/jbrowse-conference-call-index.html">JBrowse conference call</a></li><li class="navListItem"><a class="navItem" href="/blog/2011/08/03/summer-2011-update-index.html">Summer 2011 update</a></li><li class="navListItem"><a class="navItem" href="/blog/2011/04/06/jbrowse-is-hiring-index.html">JBrowse is hiring!</a></li><li class="navListItem"><a class="navItem" href="/blog/2011/03/17/jbrowse-1-2-1-released-index.html">JBrowse 1.2.1 released</a></li><li class="navListItem"><a class="navItem" href="/blog/2011/02/17/jbrowse-1-2-released-index.html">JBrowse 1.2 released</a></li><li class="navListItem"><a class="navItem" href="/blog/2010/12/18/touch-the-genome-index.html">Touch the genome</a></li><li class="navListItem"><a class="navItem" href="/blog/2010/11/24/hg19-tarball-updated-index.html">hg19 tarball updated</a></li><li class="navListItem"><a class="navItem" href="/blog/2010/11/11/data-mini-release-hg19-annotation-tarball-index.html">JBrowse tarball for hg19 human genome data</a></li><li class="navListItem"><a class="navItem" href="/blog/2010/10/11/personal-genomics-website-using-jbrowse-index.html">Personal genomics website using JBrowse</a></li><li class="navListItem"><a class="navItem" href="/blog/2010/10/11/jbrowse-website-moved-to-amazon-cloud-index.html">JBrowse website moved to Amazon cloud</a></li><li class="navListItem"><a class="navItem" href="/blog/2010/09/09/jbrowse-1-1-release-index.html">JBrowse 1.1 release</a></li></ul></div></div></section></div><script>
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</script></nav></div><div class="container mainContainer postContainer blogContainer"><div class="wrapper"><div class="lonePost"><div class="post"><header class="postHeader"><h1 class="postHeaderTitle"><a href="/blog/2018/04/18/jbrowse-1-14-0-release-index.html">JBrowse 1.14.0 release - iframe-less embedding, BigBed support</a></h1><p class="post-meta">April 18, 2018</p><div class="authorBlock"></div></header><div><span><p>JBrowse 1.14.0 has been released!</p>
<p>This release includes two major improvements, the first being that it's no longer strictly necessary to run JBrowse inside an <code><iframe></code> when embedding it in another site or webpage. Big thanks to Lacey Sanderson for championing this feature, and we look forward to working with the Tripal team toward a better JBrowse integration!</p>
<p>The second major improvement is in displaying data from BigBed files. Not only can JBrowse can now open BigBed files both locally, and over the web, but it now natively displays BED-type thick/thin features and feature blocks rather than converting them to GFF3-style feature hierarchies. This makes both BigBed and BED fast and responsive. The new BED glyph will also use each feature's RGB color if it has one.</p>
<p>There are many more features coming that enhance JBrowse's compatibility with UCSC-format data, stay tuned for future JBrowse releases!</p>
<p>As always, read on below the fold for the full release notes, including minor improvements and bugfixes.</p>
<h2><a class="anchor" aria-hidden="true" id="files-for-download"></a><a href="#files-for-download" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Files for download</h2>
<ul>
<li><a href="https://github.com/GMOD/jbrowse/releases/download/1.14.0-release/JBrowse-1.14.0.zip">JBrowse-1.14.0.zip</a> - 2.8M
file SHA1 4538cf147464b52b7edb9bd67a0aff76ba63b3a1</li>
<li><a href="https://github.com/GMOD/jbrowse/releases/download/1.14.0-release/JBrowse-1.14.0-dev.zip">JBrowse-1.14.0-dev.zip</a> - 7.1M
file SHA1 2014b264733cf8cf377ec464eb751726384926df</li>
</ul>
<h2><a class="anchor" aria-hidden="true" id="major-improvements"></a><a href="#major-improvements" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Major improvements</h2>
<ul>
<li>JBrowse now behaves much better when embedded in a webpage without using an iframe.
See tests/drupal.htm in the JBrowse code for an example of this usage. Thanks to
<a href="https://github.com/laceysanderson">@laceysanderson</a> for her patiently championing this feature all the way through the
long road to completion! (<a href="https://github.com/gmod/jbrowse/issues/777">issue #777</a>, <a href="https://github.com/gmod/jbrowse/pull/844">issue #844</a>, <a href="https://github.com/cmdcolin">@cmdcolin</a>)</li>
<li>There is a new BigBed store type, for opening BigBed files. An example BigBed track configuration:</li>
</ul>
<pre> [tracks.GENCODE]
storeClass = JBrowse/Store/SeqFeature/BigBed
type = CanvasFeatures
urlTemplate = gencode.bb
style.label = gene_name,name,id
style.description = gene_bio_type
</pre>
<ul>
<li>JBrowse now has much better support for UCSC-style BED and BigBed features, via the new BED
glyph type for CanvasFeatures. Rather than rendering a complex feature hierarchy like many
of the other CanvasFeatures glyphs, the BED glyph draws sub-blocks with thick and thin regions,
for compatibility with the UCSC browser. CanvasFeatures will automatically use the
<code>JBrowse/View/FeatureGlyph/UCSC/BED</code> glyph type if a feature has no subfeatures, but has
<code>blockCount</code> or <code>thickStart</code> attributes. This means that, in practice, a BigBed file will
display very well with just the default configuration. Also for compatibility with the UCSC
browser, JBrowse will set a BED feature's background color if one is included in the
feature data (turn this off by setting <code>itemRgb = false</code>).</li>
</ul>
<h2><a class="anchor" aria-hidden="true" id="minor-improvements"></a><a href="#minor-improvements" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Minor improvements</h2>
<ul>
<li>The current dataset name is now displayed in the top right portion of the menu bar.
(<a href="https://github.com/gmod/jbrowse/issues/767">issue #767</a>, <a href="https://github.com/rbuels">@rbuels</a>)</li>
<li><code>prepare-refseqs.pl</code> now accepts a <code>--gff-sizes</code> option to allow defining reference
sequence sizes from the <code>##sequence-region</code> directives in a GFF3 file. <a href="https://github.com/rbuels">@rbuels</a></li>
<li>Some store types now support a <code>topLevelFeatures</code> configuration variable, which allows
tracks to treat certain types of features as 'top-level', even the actual track data
has them as children of other features. One common use case for this would be if
you have gene models in a GFF3 structured as gene→mRNA→exon/CDS/UTR, but you want to
display the "mRNA" features as top-level, i.e. ignore the gene container that they are in.
Now you can set <code>topLevelFeatures = mRNA</code> in the track configuration, and the track will
display only "mRNA" features on the top level, ignoring any other existing top-level features,
and ignoring the containing "gene" features. This helps address what seems to be a common
pain point of having to "filter" tabix-formatted GFF3 before using it with Apollo. One
important caveat is that users that configure tracks to use an "out of band" source of
feature density or coverage data, like a separate wiggle file that shows feature density,
will have to make sure that the density data is correct for this filter setting if they
use it. Thanks to <a href="https://github.com/Yating-L">@Yating-L</a>, <a href="https://github.com/nathandunn">@nathandunn</a>, and <a href="https://github.com/cmdcolin">@cmdcolin</a> for valuable discussions.
Stores that support <code>topLevelFeatures</code> currently are: GFF3Tabix, GFF3, BED, BEDTabix,
GTF, and REST (<a href="https://github.com/gmod/jbrowse/issues/974">issue #974</a>, <a href="https://github.com/gmod/jbrowse/issues/969">issue #969</a>, <a href="https://github.com/rbuels">@rbuels</a>)</li>
<li>JBrowse can now accept additional configuration from a <code>data-config</code> attribute on its
container element. This is useful for embedding JBrowse in other sites, particularly
in cases where the JBrowse assets and configuration are stored or referenced from a
different location from the page displaying the embedded JBrowse. For example:</li>
</ul>
<pre>
<div class="jbrowse"
data-config='"baseUrl": "../jbrowse"'
id="GenomeBrowser"
style="height: 600px; width: 100%; padding: 0; border: 0;"
>
</div>
</pre>
would tell JBrowse to look for its configuration and assets at the relative base URL
"../jbrowse". [@rbuels](https://github.com/rbuels)
* JBrowse now has a favicon! ([issue #973](https://github.com/gmod/jbrowse/issues/973), [@rbuels](https://github.com/rbuels))
* Added additional caching code to SequenceChunks and NCList stores, reducing duplicate
network requests and increasing performance in some circumstances ([issue #855](https://github.com/gmod/jbrowse/pull/855), [@cmdcolin](https://github.com/cmdcolin))
<h2><a class="anchor" aria-hidden="true" id="bug-fixes"></a><a href="#bug-fixes" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Bug fixes</h2>
<ul>
<li>Fix a bug in which saving exported data to a file was nonfunctional for some export
data types. <a href="https://github.com/rbuels">@rbuels</a></li>
<li>Fix a bug in which subfeatures were not always fetched correctly when using the GFF3Tabix
store (<a href="https://github.com/gmod/jbrowse/issues/780">issue #780</a>, <a href="https://github.com/rbuels">@rbuels</a>)</li>
<li>Fixed several bugs with specific cases of relative URLs used in configuration. <a href="https://github.com/rbuels">@rbuels</a></li>
</ul>
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