Settings.config callback crashes when passed option containing encoded percent sign

[compelling]

Hi, I have have several users of Grosh for Pebble reporting they can login to the app in the settings web page running inside Pebble Time app, but the watch fails to connect using the credentials transferred back to the watch app from the web page.

Did some tests, and it turns out you cannot transfer password containing % sign.
The web page encodes the options
var location = "pebblejs://close#" + encodeURIComponent(JSON.stringify(options)); console.log("Warping to: " + location);

When entering [email protected] - G1234% and looking at the console, this looks fine:
Warping to: pebblejs://close#%7B%22email%22%3A%22g%40gmail.com%22%2C%22password%22%3A%22G1234%25%22%7D

So the % is nicely escaped. But the watch app dies:
URIError: URI error decodeURIComponent@[native code] at onCloseConfig (settings/settings.js:186:43)

Any ideas how to get around this, except telling users to stop using % in their password?

[matopeto]

As workaround you can encode password (like base64) in your settings page, and than decode after settings page is closed.

I am reproduced this error on iOS (even with Clay config) it seems to be OS problem when hash (after #) is decoded, so, %25 is decoded while reading, and double decoding causing the error.

Maybe Safari has the same problem as Firefox: http://stackoverflow.com/questions/4835784/firefox-automatically-decoding-encoded-parameter-in-url-does-not-happen-in-ie

[compelling]

Yes, it was iOS that i tested on. Yes, base64 encoding should do the trick, will do that for now.