XHR fails with "Invalid response for blob" always when response status 204( no-content )

[mastersam92]

When I try fetch some backend's api, then response, in case of success, has contentType application/json and http status 204 (no content), my api call fails with error: "Invalid response for blob:"
If response have some content, fetch works perfectly;

Update:
RN default fetch( whatwg-fetch ) request fails always when response status 204( no content ), regardless of content-type, request method( tested on GET / POST ).. and, even if response has some data in body, but have status 204 - fetch fails with error "Invalid response for blob:".

Environment

Environment:
OS: macOS Sierra 10.12.6
Node: 9.3.0
Yarn: 1.3.2
npm: 5.6.0
Watchman: Not Found
Xcode: Xcode 9.2 Build version 9C40b
Android Studio: 3.0 AI-171.4443003

Packages: (wanted => installed)
react: ^16.0.0 => 16.2.0
react-native: ^0.54.0 => 0.54.0
whatwg-fetch: ^1.0.0 => 1.1.1

Expected Behavior

Works normally. Without some errors in fetch only because response has status 204( no content );

Actual Behavior

Fails with error: "Invalid response for blob:"

Steps to Reproduce

1. Fetch( with default RN fetch ) some backend's API, that response with contentType application/json and http status 204 (no content), i.e response contains only header.

2. Enjoy fails with.. description about.. blob !?

[andrew-wagner89]

I encountered the same issue when I tried to upgrade from 0.53.0 to 0.54.0, so for now I'm just going to stay on 53 until this is resolved

[genglei01]

Get the same issue

[balsloev]

Same issue here.

[Azkv]

+1
On 0.54 this keep popping up if code is 204
Nothing on 0.53

[dbarros]

I'm also seeing the same error on 0.54. Works fine in 0.53.3.

[Azkv]

0.53

case 'blob':
        this._cachedResponse = new global.Blob(
          [base64.toByteArray(this._response).buffer],
          {type: this.getResponseHeader('content-type') || ''}
        );
        break;

0.54 XMLHttpRequest blob case

case 'blob':
        if (typeof this._response === 'object' && this._response) {
          this._cachedResponse = BlobManager.createFromOptions(this._response);
        } else {
          throw new Error(`Invalid response for blob: ${this._response}`);
        }
        break;

0.54 enforces the response to be an object..

Edit:
As a temporary workaround, simply comment out the
throw new Error(Invalid response for blob: ${this._response});
line and it won't throw it anymore. But this doesn't solve the problem ofc.

[obsidianart]

Same here, but only on Android. Iphone seems to work, which makes no sense.

[johnnyrockenstein]

Any updates or work arounds for this?