@uppy/companion: add connection keep-alive to dropbox (transloadit#4365)

* add connection: keep-alive to dropbox

fixes transloadit#4357

* update a todo

* dont clear screen by vite

i want to also see companion's output

src/server/provider/dropbox/index.js

@@ -73,6 +73,7 @@ class DropBox extends Provider {
         prefixUrl: 'https://content.dropboxapi.com/2',
         headers: {
           'Dropbox-API-Arg': httpHeaderSafeJson({ path: String(id) }),
+          Connection: 'keep-alive', // important because https://github.com/transloadit/uppy/issues/4357
         },
         body: Buffer.alloc(0), // if not, it will hang waiting for the writable stream
         responseType: 'json',

src/standalone/index.js

@@ -116,7 +116,7 @@ module.exports = function server (inputCompanionOptions) {
   if (companionOptions.redisUrl) {
     const RedisStore = connectRedis(session)
     const redisClient = redis.client(companionOptions)
-    // todo next major: change default prefix to something like "companion:" and possibly remove this option
+    // todo next major: change default prefix to something like "companion-session:" and possibly remove this option
     sessionOptions.store = new RedisStore({ client: redisClient, prefix: process.env.COMPANION_REDIS_EXPRESS_SESSION_PREFIX || 'sess:' })
   }