Struct HeadlessConfig 

pub struct HeadlessConfig {
    pub max_concurrent: usize,
    pub chrome_executable: String,
    pub block_images: bool,
    pub block_fonts: bool,
    pub block_media: bool,
    pub block_css: bool,
    pub block_third_party: bool,
    pub block_service_workers: bool,
    pub default_wait: String,
    pub timeout_secs: u64,
    pub auto_detect_spa: bool,
    pub launch_delay_secs: u64,
}

[headless] configuration block. M9 adds browser/headless-fetch knobs.

Fields

max_concurrent: usize

chrome_executable: String

Path to a Chrome/Chromium executable. Empty string means auto-detect.

block_images: bool

Fulfill image requests with empty 200 (saves bandwidth + render time).

block_fonts: bool

Fulfill font requests with empty 200.

block_media: bool

Fulfill audio/video/track requests with empty 200.

block_css: bool

Fulfill CSS requests with empty 200. Default false — many SPAs need layout to render correctly.

block_third_party: bool

Fulfill third-party analytics/tracker requests with empty 200.

block_service_workers: bool

Disable service workers at browser init via CDP bypass. Honored by HeadlessRenderer setup (not by the intercept handler).

default_wait: String

Default wait condition: "domcontentloaded" or "networkidle0" (wait for the network to fully settle — captures post-load XHR content).

timeout_secs: u64

Per-render timeout in seconds (covers the wait phase).

auto_detect_spa: bool

Whether HeadlessMode::Auto should run the SPA detection heuristic.

launch_delay_secs: u64

In Auto mode, the delay (in seconds) before escalating to a headless render once the plain HTTP fetch is in — i.e. between detecting that a render is needed (an unrendered SPA, or a bot-protection challenge) and launching/driving the browser. Gives the origin a breather between the lightweight fetch and the heavier browser hit. 0 disables the pause. Does not apply to On mode, which has no detection step.

Implementations

impl HeadlessConfig

pub fn timeout(&self) -> Duration

Render timeout as a Duration.

pub fn launch_delay(&self) -> Duration

Auto-mode pre-render escalation delay as a Duration.

Trait Implementations

impl Clone for HeadlessConfig

fn clone(&self) -> HeadlessConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for HeadlessConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for HeadlessConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for HeadlessConfig

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for HeadlessConfig

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.