Web apps often look at window.location to see what site they are running on. If a script on youtube.com detects it is actually running on a proxy domain, it will fail to execute or throw a security error. Scramjet injects specialized rewriter scripts that patch the Document Object Model (DOM) and mask these variables. The guest website believes it is running on its native server, allowing scripts to execute normally. 3. Overcoming CORS Barriers
Scramjet can ingest data directly from browsers via WebSockets. A browser can act as a data source, sending data points, user interactions, or logs to a Scramjet SPU, which then processes them in real-time. B. JavaScript-Based Processing
Developed by the Mercury Workshop , the project aims to bridge the gap between user privacy and functionality.
The scramjet core team is currently working on:
If you want to dive deeper into this technology, let me know: scramjet browser work
Explain how feature flags like captureErrors and sourcemaps assist developers in maintaining proxy stability. 4. Implementation and Deployment
: Designed to be integrated into other projects as middleware. ⚠️ Potential Confusion: Scramjet Engines The term "Scramjet" also refers to a Supersonic Combustion Ramjet engine used in aerospace. Flight Speed : Operates at hypersonic speeds (Mach 5+). Combustion : Maintains supersonic airflow throughout the engine.
For high performance, Scramjet uses WebAssembly (WASM) to handle the computationally heavy task of rewriting complex website code on the fly.
But modern web apps (WebAssembly, WebRTC, File System Access API) changed the game. Now, we want to: Web apps often look at window
: The raw stream chunks are transferred to a background Web Worker via standard thread messaging ( postMessage ), ensuring zero overhead on the UI thread.
Eliminates unique server-side TLS fingerprints that firewalls target. Real-World Applications Scramjet is predominantly utilized across three fields:
: Uses WebAssembly to rewrite HTML, CSS, and JS with minimal performance overhead.
Scramjet's prowess comes from its unique combination of powerful, modern web technologies. The guest website believes it is running on
High-fidelity web emulation within a sandbox.
This is the "brain" of the proxy. It uses a Service Worker to intercept all outgoing network requests from the web application. It then rewrites these requests and their responses in real-time, effectively "tricking" the browser into thinking it is staying on the same origin while it actually fetches data from a proxy server.
The project is built using high-performance web technologies: TypeScript : Comprising over 60% of the codebase for type-safe logic. : Used for the high-speed rewriting engine.