[feature request] disable decode_param for path routing

I have some special urls thats get mapped to local files like image50%.png.

app.get('/open/:path(*)', (req, res) => {})

But it doesn’t work because express automaticly calls decode_param. It throws Failed to decode param.

[dougwilson]

Hi @lublak by invalid, I am referring to what Express.js considers invalid. The reason you are getting the error is indeed because the URL is invalid according to Express.js, as it expects parameters to be URL-encoded and if the JavaScript function to decode URL-encoded strings, decodeURIComplement throws as invalid, then Express.js will bubble up that error. I did not make any statements regarding how Firefox works, of course, though my understanding is it will send whatever the user types in, regardless of what the web server is expecting. My guess, though, is that Firefox will still turn spaces into %20, so if you disable the param decoding, a URL like /open/foo bar.jpg will end up as foo%20bar.jpg on the server when you have decoding disabled, even if the user typed in a literal space, so turning it off probably has down sides.

[lublak]

@dougwilson for me it works fine 😃 thanks for your tip. But i decided only support some %. urlPath.replace(/%([&$%.-_ #?=*/]|$)/g, '%25$1')