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January 7, 2022 14:06
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Show a custom message to social media visitors.
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <script src="/referer.js"></script> | |
| </head> | |
| <body> | |
| <div id="greeting"></div> | |
| </body> | |
| </html> |
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| if (document.referrer) { | |
| var source_domain = (document.referrer.split('/')[2]); | |
| var social_media = [ | |
| ["t.co", "Twitter"], | |
| ["reddit.com", "reddit"], | |
| ["facebook.com", "Facebook"], | |
| ["instagram.com", "Instagram"], | |
| ["youtube.com", "YouTube"], | |
| ["pinterest.com", "Pinterest"] | |
| ]; | |
| for (let index = 0; index < social_media.length; ++index) { | |
| const element = social_media[index]; | |
| //need to use endsWith or t.co will match reddit.com etc | |
| if (source_domain.endsWith(element[0])) { | |
| pretty_name = element[1]; | |
| break; | |
| } | |
| } | |
| } | |
| function show_msg() { | |
| if (pretty_name) { | |
| document.getElementById("greeting").innerHTML = "Welcome, " + pretty_name + " visitor!"; | |
| } | |
| } | |
| window.onload = show_msg; |
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