Enum BrowserError 

pub enum BrowserError {
    LaunchFailed {
        reason: String,
    },
    CdpError {
        operation: String,
        message: String,
    },
    PoolExhausted {
        active: usize,
        max: usize,
    },
    Timeout {
        operation: String,
        duration_ms: u64,
    },
    NavigationFailed {
        url: String,
        reason: String,
    },
    ScriptExecutionFailed {
        script: String,
        reason: String,
    },
    ConnectionError {
        url: String,
        reason: String,
    },
    ConfigError(String),
    ProxyUnavailable {
        reason: String,
    },
    Io(Error),
    StaleNode {
        selector: String,
    },
}

Errors that can occur during browser automation.

Every variant carries enough structured context to decide on a retry policy or surface a useful diagnostic message without string-parsing.

Variants

LaunchFailed

Browser process failed to start.

Fields

reason: String

Human-readable explanation of the failure.

CdpError

Chrome DevTools Protocol (CDP) operation failed.

Fields

operation: String

The CDP method or operation that failed.

message: String

Error detail from the protocol layer.

PoolExhausted

All pool slots are occupied and the wait timeout elapsed.

Fields

active: usize

Current number of active browser instances.

max: usize

Pool capacity limit.

Timeout

An operation exceeded its configured timeout.

Fields

operation: String

The operation that timed out.

duration_ms: u64

Elapsed time in milliseconds.

NavigationFailed

Page navigation failed.

Fields

url: String

Target URL.

reason: String

Failure reason.

ScriptExecutionFailed

JavaScript evaluation failed.

Fields

script: String

Abbreviated script text (first 120 chars).

reason: String

Error detail.

ConnectionError

WebSocket / transport connection error.

Fields

url: String

Connection endpoint (ws:// URL or socket path).

reason: String

Failure reason.

ConfigError(String)

Invalid configuration value.

ProxyUnavailable

Proxy acquisition failed — no proxy is available or the circuit breaker is open.

Fields

reason: String

Reason the proxy could not be acquired.

Io(Error)

Underlying I/O error.

StaleNode

The RemoteObject reference has been invalidated — the page navigated or the DOM node was removed since the NodeHandle was created.

Fields

selector: String

CSS selector that produced the stale handle, for diagnostics.

Trait Implementations

impl Debug for BrowserError

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

Formats the value using the given formatter.

impl Display for BrowserError

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

Formats the value using the given formatter.

impl Error for BrowserError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<CdpError> for BrowserError

fn from(err: CdpError) -> Self

Converts to this type from the input type.

impl From<Error> for BrowserError

fn from(source: Error) -> Self

Converts to this type from the input type.