I would suspect that this has to do with the different options for the form's enctype when the method is POST. This controls the way the parameters are delivered to CGI, from memory:

My guess would be that since the default is to replace all spaces with "+" the CGI parameter processing by default does the reverse

In reply to Re: "+" stripped from CGI params by hawtin
in thread "+" stripped from CGI params by citromatik

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