Repository: youtube-dl
Issue: Error Unable to extract Video [Openload]
Labels: cant-reproduce

### Make sure you are using the *latest* version: run `youtube-dl --version` and ensure your version is *2018.05.01*. If it's not, read [this FAQ entry](https://github.com/rg3/youtube-dl/blob/master/README.md#how-do-i-update-youtube-dl) and update. Issues with outdated version will be rejected.
- [x] I've **verified** and **I assure** that I'm running youtube-dl **2018.05.01**

### Before submitting an *issue* make sure you have:
- [x] At least skimmed through the [README](https://github.com/rg3/youtube-dl/blob/master/README.md), **most notably** the [FAQ](https://github.com/rg3/youtube-dl#faq) and [BUGS](https://github.com/rg3/youtube-dl#bugs) sections
- [x] [Searched](https://github.com/rg3/youtube-dl/search?type=Issues) the bugtracker for similar issues including closed ones
- [x] Checked that provided video/audio/playlist URLs (if any) are alive and playable in a browser

### What is the purpose of your *issue*?
- [x] Bug report (encountered problems with youtube-dl)
- [ ] Site support request (request for adding support for a new site)
- [ ] Feature request (request for a new functionality)
- [ ] Question
- [ ] Other

---

### Ouput Console:

```
youtube-dl -v https://openload.co/embed/4VfaP6nlcd4/silicon-valley-s01e01-lat-720p.mp4
[debug] System config: [u'--force-ipv4', u'--external-downloader', u'aria2c', u'--external-downloader-args', u'-x 16 -s 16 -k 1M']
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'https://openload.co/embed/4VfaP6nlcd4/silicon-valley-s01e01-lat-720p.mp4']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2018.05.01
[debug] Python version 2.7.15rc1 (CPython) - Linux-4.15.0-20-generic-x86_64-with-Ubuntu-18.04-bionic
[debug] exe versions: ffmpeg 3.4.2-2, ffprobe 3.4.2-2, phantomjs 2.1.1
[debug] Proxy map: {}
[Openload] 4VfaP6nlcd4: Downloading embed webpage
[Openload] 4VfaP6nlcd4: Executing JS on webpage
ERROR: Unable to extract stream URL; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 789, in extract_info
    ie_result = ie.extract(url)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 440, in extract
    ie_result = self._real_extract(url)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/openload.py", line 347, in _real_extract
    'stream URL'))
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 820, in _search_regex
    raise RegexNotFoundError('Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract stream URL; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
```

### Ignore Config File:

```
youtube-dl -v --ignore-config https://openload.co/embed/4VfaP6nlcd4/silicon-valley-s01e01-lat-720p.mp4
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'--ignore-config', u'https://openload.co/embed/4VfaP6nlcd4/silicon-valley-s01e01-lat-720p.mp4']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2018.05.01
[debug] Python version 2.7.15rc1 (CPython) - Linux-4.15.0-20-generic-x86_64-with-Ubuntu-18.04-bionic
[debug] exe versions: ffmpeg 3.4.2-2, ffprobe 3.4.2-2, phantomjs 2.1.1
[debug] Proxy map: {}
[Openload] 4VfaP6nlcd4: Downloading embed webpage
[Openload] 4VfaP6nlcd4: Executing JS on webpage
ERROR: Unable to extract stream URL; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 789, in extract_info
    ie_result = ie.extract(url)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 440, in extract
    ie_result = self._real_extract(url)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/openload.py", line 347, in _real_extract
    'stream URL'))
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 820, in _search_regex
    raise RegexNotFoundError('Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract stream URL; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
```
---

### Description of your *issue*, suggested solution and other information

(I speak Spanish and a little English, sorry for my spelling)
- Issue find: https://github.com/rg3/youtube-dl/issues/16137

I was downloading a video in Openload Site, and I get an error. I have the latest version of youtube-dl and phantomjs.

The video plays perfectly in my browser (Firefox 59.0.2, Linux 64-Bit)

Proof: https://i.imgur.com/2MUFBRY.png