Duplication of baseUrl in uploadAppPath

[Onslivion]

When configuring these two variables as such;

  // set to serve PsiTransfer from a sub-path
  "baseUrl": '/securedownload',
  // use to set custom upload url (subfolder to baseUrl)
  "uploadAppPath": '/upload/',

The error page pops up, saying that a download bucket was not found. Notably this showed that there's a duplication of the baseUrl into the upload URL;

I've found that this line in config.js appears to be causing this duplication;
config.uploadAppPath = config.baseUrl.substr(0, config.baseUrl.length - 1) + config.uploadAppPath;
and by commenting it out, I was able to use the URL /securedownload/upload/ without issue. This change was made in this commit

Other notes about my configuration;

• I am using nginx reverse proxies to access an internal file server where psitransfer is running. It basically does a double proxy pass, from the main web server to the file server then to psitransfer;
  webserver: proxy_pass "http://[fileserverip]:80;
  fileserver: proxy_pass "http://127.0.0.1:3000";

So far I haven't found a reason why nginx would be the issue here, but I'm not 100% sure since I'm not an expert.