A URL like
http://localhost/path?a=b&c=d
is fine - but what is the status of the same URL with a trailing ampersand?
http://localhost/path?a=b&c=d&
For example the Java Servlet API allows it where Scala's Spray does not (ie it throws an error).
I've tried to find the answer in the URI syntax spec, but not sure how to parse their grammar.
If you have a url like the following in a plain-text email:
Please follow this link https://server/doc?param=test. to reset the password of your account.
It becomes a useful feature since if the last parameter ends with ". " (dot + space) and is placed in an e-mail, all kinds of mail clients assume that the dot is ending a sentence and exclude it from the clickable link they add if they detect a URL.
Putting the link between double-quotes or angle-brackets isn't supported in all mail clients and default URL encoding leaves the dot as it is not a reserved URI character...
I ended up appending a trailing ampersand "&" to the URL to fix this, call me crazy but it works.