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Website screenshots
...age Insight api.
Just need to call it's api with params screenshot=true.
https://www.googleapis.com/pagespeedonline/v1/runPagespeed?
url=https://stackoverflow.com/&key={your_api_key}&screenshot=true
For mobile site view pass &strategy=mobile in params,
https://www.googleapis.com/pag...
Browsers' default CSS for HTML elements
...
It's different for each browser, so:
Firefox (Gecko): https://dxr.mozilla.org/mozilla-central/source/layout/style/res/html.css. Or, browse to resource://gre-resources/ and look at html.css.
Chrome/Safari (WebKit): http://trac.webkit.org/browser/trunk/Source/WebCore/css/html.css
...
How to link to specific line number on github
... of code. Looks like this:
And now your browser's URL looks like this:
https://github.com/git/git/blob/master/README#L18
If you want multiple lines selected, simply hold down the shift key and click a second line number, like line 20. Looks like this:
And now your browser's URL looks like t...
How to add facebook share button on my website?
...n't need all that code. All you need are the following lines:
<a href="https://www.facebook.com/sharer/sharer.php?u=example.org" target="_blank">
Share on Facebook
</a>
Documentation can be found at https://developers.facebook.com/docs/reference/plugins/share-links/
...
How to do a https request with bad certificate?
Say I want to get https://golang.org programatically. Currently golang.org (ssl) has a bad certificate which is issued to *.appspot.com So when I run this:
...
How to scale Docker containers in production
...ners (running databases services?) portable across multiple docker hosts:
https://clusterhq.com/
Update 14
A project to create portable templates that describe Docker applications:
http://panamax.io/
Update 15
The Docker project is now addressing orchestration natively (See announcement)
Doc...
Facebook access token server-side validation for iPhone app
... user access token belongs to your App:
1) Generate an App Access token
(https://developers.facebook.com/docs/howtos/login/login-as-app/)
https://graph.facebook.com/oauth/access_token?
client_id=YOUR_APP_ID
&client_secret=YOUR_APP_SECRET
&grant_type=client_credentials
2) Debug the User ...
Do a “git export” (like “svn export”)?
... I tried : git archive --format=zip --output foo.zip --remote=https://github.com/xxx.git master And got fatal: Operation not supported by protocol. Unexpected end of command stream.
– andyf
Jul 19 '13 at 8:04
...
How to git clone a specific tag
...
git clone -b 13.1rc1-Gotham --depth 1 https://github.com/xbmc/xbmc.git
Cloning into 'xbmc'...
remote: Counting objects: 17977, done.
remote: Compressing objects: 100% (13473/13473), done.
Receiving objects: 36% (6554/17977), 19.21 MiB | 469 KiB/s
Will be f...
How to check if a URL is valid
... =~ /\A#{URI::regexp}\z/
If you only want to check for web URLs (http or https), use this:
url =~ /\A#{URI::regexp(['http', 'https'])}\z/
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