FingerprintApplier

Applies a browser fingerprint profile to a tab and its workers via CDP overrides and JS injection, ensuring consistent identity across pages, iframes, and workers.

class FingerprintApplier:
    """Applies a fingerprint profile to a single tab and its worker targets.

    Owns the whole fingerprint-injection subsystem so ``Tab`` does not: the CDP
    ``Emulation`` overrides, the ``addScriptToEvaluateOnNewDocument`` JavaScript
    injection, and the auto-attach machinery that replays the same identity on
    dedicated, shared and service workers. A ``Tab`` composes an instance of this
    and ``Tab.apply_fingerprint`` is a thin wrapper delegating to :meth:`apply`.
    """

    # Per-session worker CDP commands use a short timeout so a slow or
    # unresponsive worker target can never block resuming the worker.
    _WORKER_COMMAND_TIMEOUT = 5

    _ORIENTATION_CDP_MAP: dict[str, ScreenOrientationType] = {
        'portrait-primary': ScreenOrientationTy

... (truncated -- full source via MCP)