from origin 'http://localhost' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

Description

Contributor guide

Tech stack

javaandroid

Domain

backendsecurity

Issue type

feature

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

3

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

1-3 hours

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

fresh

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

mostly clear

Prerequisites

Basic HTTP knowledgeCORS understandingAndroid development basics

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

60

Research direction

The issue is about missing CORS headers when making requests from a browser to an Android server. Research how AndServer handles HTTP responses (likely in the server configuration or handler classes). Look for existing CORS support or filters. If none, implement a mechanism to add 'Access Control Allow Origin' header to responses. Check the maintainer's comments for guidance on preferred implementation.