Dromaeo doesn't start to test when running locally

[muelli]

Here is what I do:

muelli@muelli-VirtualBox:/tmp$ git clone https://github.com/jeresig/dromaeo
Cloning into 'dromaeo'...
remote: Reusing existing pack: 784, done.
remote: Total 784 (delta 0), reused 0 (delta 0)
Receiving objects: 100% (784/784), 3.14 MiB | 266 KiB/s, done.
Resolving deltas: 100% (427/427), done.
muelli@muelli-VirtualBox:/tmp$ cd dromaeo
muelli@muelli-VirtualBox:/tmp/dromaeo$ make web
Converting tests/dromaeo-3d-cube.js to web test...
Converting tests/dromaeo-core-eval.js to web test...
Converting tests/dromaeo-object-array.js to web test...
Converting tests/dromaeo-object-regexp.js to web test...
Converting tests/dromaeo-object-string.js to web test...
Converting tests/dromaeo-string-base64.js to web test...
Converting tests/sunspider-3d-morph.js to web test...
Converting tests/sunspider-3d-raytrace.js to web test...
Converting tests/sunspider-access-binary-trees.js to web test...
Converting tests/sunspider-access-fannkuch.js to web test...
Converting tests/sunspider-access-nbody.js to web test...
Converting tests/sunspider-access-nsieve.js to web test...
Converting tests/sunspider-bitops-3bit-bits-in-byte.js to web test...
Converting tests/sunspider-bitops-bits-in-byte.js to web test...
Converting tests/sunspider-bitops-bitwise-and.js to web test...
Converting tests/sunspider-bitops-nsieve-bits.js to web test...
Converting tests/sunspider-controlflow-recursive.js to web test...
Converting tests/sunspider-crypto-aes.js to web test...
Converting tests/sunspider-crypto-md5.js to web test...
Converting tests/sunspider-crypto-sha1.js to web test...
Converting tests/sunspider-date-format-tofte.js to web test...
Converting tests/sunspider-date-format-xparb.js to web test...
Converting tests/sunspider-math-cordic.js to web test...
Converting tests/sunspider-math-partial-sums.js to web test...
Converting tests/sunspider-math-spectral-norm.js to web test...
Converting tests/sunspider-regexp-dna.js to web test...
Converting tests/sunspider-string-fasta.js to web test...
Converting tests/sunspider-string-unpack-code.js to web test...
Converting tests/sunspider-string-validate-input.js to web test...
Converting tests/v8-crypto.js to web test...
Converting tests/v8-deltablue.js to web test...
Converting tests/v8-earley-boyer.js to web test...
Converting tests/v8-richards.js to web test...
Converting tests/cssquery-dojo.html to web test...
Converting tests/cssquery-ext.html to web test...
Converting tests/cssquery-jquery-2.x.html to web test...
Converting tests/cssquery-jquery.html to web test...
Converting tests/cssquery-mootools.html to web test...
Converting tests/cssquery-prototype.html to web test...
Converting tests/cssquery-yui.html to web test...
Converting tests/dom-attr.html to web test...
Converting tests/dom-modify.html to web test...
Converting tests/dom-query.html to web test...
Converting tests/dom-traverse.html to web test...
Converting tests/jslib-attr-jquery-2.x.html to web test...
Converting tests/jslib-attr-jquery.html to web test...
Converting tests/jslib-attr-prototype.html to web test...
Converting tests/jslib-event-jquery-2.x.html to web test...
Converting tests/jslib-event-jquery.html to web test...
Converting tests/jslib-event-prototype.html to web test...
Converting tests/jslib-modify-jquery-2.x.html to web test...
Converting tests/jslib-modify-jquery.html to web test...
Converting tests/jslib-modify-prototype.html to web test...
Converting tests/jslib-style-jquery-2.x.html to web test...
Converting tests/jslib-style-jquery.html to web test...
Converting tests/jslib-style-prototype.html to web test...
Converting tests/jslib-traverse-jquery-2.x.html to web test...
Converting tests/jslib-traverse-jquery.html to web test...
Converting tests/jslib-traverse-prototype.html to web test...
Converting tests/sunspider-string-tagcloud.html to web test...
Converting tests/v8-raytrace.html to web test...
muelli@muelli-VirtualBox:/tmp/dromaeo$ cd web/
muelli@muelli-VirtualBox:/tmp/dromaeo/web$ python -m SimpleHTTPServer 8887&
[4] 3297
muelli@muelli-VirtualBox:/tmp/dromaeo/web$ Serving HTTP on 0.0.0.0 port 8887 ...
muelli@muelli-VirtualBox:/tmp/dromaeo/web$ firefox http://127.1:8887/?recommended

(process:3356): GLib-CRITICAL **: g_slice_set_config: assertion `sys_page_size == 0' failed
muelli@muelli-VirtualBox:/tmp/dromaeo/web$ 127.0.0.1 - - [07/Feb/2014 19:39:40] "GET /?recommended HTTP/1.1" 301 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /?recommended/ HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /reset.css HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /application.css HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /jquery.js HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /json.js HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /webrunner.js HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /images/bg.png HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /images/logo3.png HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /images/dino1.png HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /images/left.png HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /images/dino2.png HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /images/dino3.png HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /images/dino4.png HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /images/dino5.png HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /images/dino7.png HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /images/dino8.png HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /images/dino6.png HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /images/clouds2.png HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /images/clouds.png HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /images/comets.png HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /images/top.png HTTP/1.1" 200 -
127.0.0.1 - - [07/Feb/2014 19:39:41] "GET /tests/MANIFEST.json HTTP/1.1" 200 -

Then it shows "Loading" and "Est. Time: 0:00" forever.
That's with Mozilla Firefox 26.0.

I expected it to load the tests and run them.