Support l.facebook.com/l.php? cleaning

[chmac]

Firstly, thanks for building this, it's exactly what I was hoping I wouldn't have to build myself!

Secondly, what about adding the option to copy & paste a link from Facebook and get back the real URL? I realise that right now that doesn't work.

Here's the URL format:

https://l.facebook.com/l.php?
u=URL_ENCODED_LINK_HERE
&h=TRACKING_PARAM
&__tn__=TRACKING_PARAM
&c[0]=TRACKING_PARAM

I guess a sensible strategy would be:

• If the link host is l.facebook.com
• Get the u parameter from the URL
• decodeURIComponent() on u
• Pass the result (which includes fbclid and other junk) through the current rules

I'd be happy to work on a PR if that's something you're open to. Just let me know.

[corbindavenport]

Random example link I found on Twitter, for testing purposes:

https://l.facebook.com/l.php?u=https%3A%2F%2Fwww.forgottenbooks.com%2Fen%2Fdownload%2FThe_Chaldean_Account_of_Genesis_Containing_the_Description_of_the_1000324030.pdf%3Ffbclid%3DIwAR1XVx0MFOZMKhBt5kuDR4Yp0tIBDBHqIw4_50rBqUmUoyShQLjpGIv55eQ&h=AT2szQ7FsPEyZyFG-Hlj-vqwKSyDYZpyb2OogpxH-NfA-0RRLybei0MW8bhF60occeEonMOOE82tphNCXPvc_qbY5jLQSPVAmvrep7E2dCRxtnCFwu8EWjUiMTbfYYIftENm&__tn__=-UK*F&c[0]=AT2e0KMdyFyFrxBt68hvhLc7QD7gd2Lw6iZEFr6ECTmSqklTG3MHQWqhWsdyDJYuowum9Lwo57w6I9UllubuQCUe-vxxEy14-_5KYFFErJg2lcxZv4Uk3z3InYB5d07xBNPxZw458ZJXSs6hjuUZ7x3VauFXLZUdDt6N8kk7McaK450Ght08YYfA4lm30_-h2GBLBK6WuyLsHyIhyECtvjcJoTLkIQFK_6Ds5eBheAxnB0KgpzccLrRuK-52CyG3xWXD

[corbindavenport]

This has been added to Link Cleaner.