CANNOT fetch file( bigger than 256k) in browser.

[LiMoMoMo]

• Version: 0.33.0-rc.3
• Platform: chrome 69.0.3497.100 32bit
• Subsystem:

Type: Question

Severity: Medium

Description:

use the Exchange files between the browser, upload some files to one page's worksapce, i can fetch the fie which is smaller than 256K by enter the CID in other page, BUT can not fetch the file bigger than 256K.

Steps to reproduce the error:

• setup local signal-server

npm install --global libp2p-webrtc-star
star-signal --port=9090 --host=127.0.0.1

• setup the Exchange files between the browser
• change the js-ipfs config in app.js

    const options = {
      EXPERIMENTAL: {
        pubsub: true
      },
      repo: repoPath,
      config: {
        Addresses: {
          Swarm: ['/dns4/192.168.1.107/tcp/8010/wss/p2p-webrtc-star'],     
          Bootstrap: []
        }
      }
    }

• disable the pubsub

function appendFile (name, hash, size, data) {
    ...
  // publishHash(hash)
}

• set Nginx

wss:8010   -----> ws:9090
https:8000 -----> http:12345

• start http-server in the example
• open two page https://192.168.1.107:8000
  the pages' Addresses can appear in other's CONNECTED PEERS area each other.
  Drag some files to one workspace, then fetch the file by enter the cid in other page.
  some files that smaller than 256K can be fetched, but the file that is big(500k or bigger) cannot be fetched.

[LiMoMoMo]

it looks like the api node.files.cat(hash) or node.files.get(hash) cannot work well when the node(the hash pointed) contains more than one child.

the files i added into one page's workspace:
1.

2.

i added code to output the wantlist:

setInterval(refreshState, 100)
function refreshState() {
  node.bitswap.stat((err, stats) => console.log('bitswap stat',stats))
}

when i fetch the smaller file, i can see the wantlist's value in step:

1. empty
2. QmSm6d2Cjs3a16Ui6Rda4QSbcgm5Wprz21fXunYS6rUuCy
3. QmV9tSDx9UiPeWExXEeH6aoDvmihvx6jD5eLb4jbTaKGps
4. empty

but when i fetch the bigger file, the wantlist's value:

1. empty
2. QmQJbccYkLvyfTnT4SoSKB6WUKqJReXhdW4Dd8jFeyppgo
3. QmZrvPiFHEV4GkR1gcAarAfMr3FCoXAhRCws3VaYP3PZFx
4. QmPxq9mBhFFbaTAqAS3M3JDXNihMcdpeMxV1Lo2Jd8RAuZ and
   QmTASUiQkzpeis7dTeqPZYWwUTs24MzJwXEQtn8eme66Tz

when the wantlist has more than 1 member, the files.cat() or files.get() cannot work.

[alanshaw]

@vasco-santos would you mind looking into this bug when you have a moment?

[LiMoMoMo]

it seems that i made a mistake, i'm sorry.
This problem occurs between tabs that in different browsers, opera and chrome.

[AquiGorka]

This is still a thing, I submitted an issue back here: #1307

[alanshaw]

closing this in favour of #1307