Constructs a RemoteBrowserCapabilityNotSupportedError.
The unsupported feature / method name (an IRemoteBrowserProviderFeatures key by convention).
The backend the call targeted (e.g. 'Browserbase', 'Steel').
Optionalmessage: stringOptional override for the human-readable message; a sensible default is built from the two names.
OptionalcauseReadonlyFeatureThe name of the unsupported feature — by convention an IRemoteBrowserProviderFeatures key
(e.g. 'LiveView', 'HumanTakeover', 'NativeAIControl') or the virtual method name when the
throw originates from an un-overridden base method.
ReadonlyProviderThe remote-browser backend the call targeted (e.g. 'Browserbase', 'Self-Hosted Chrome').
Sourced from the provider metadata row's Name, or the driver's own identifier when the
provider name is not available at the throw site.
OptionalstackStaticstackThe Error.stackTraceLimit property specifies the number of stack frames
collected by a stack trace (whether generated by new Error().stack or
Error.captureStackTrace(obj)).
The default value is 10 but may be set to any valid JavaScript number. Changes
will affect any stack trace captured after the value has been changed.
If set to a non-number value, or set to a negative number, stack traces will not capture any frames.
StaticcaptureCreates a .stack property on targetObject, which when accessed returns
a string representing the location in the code at which
Error.captureStackTrace() was called.
const myObject = {};
Error.captureStackTrace(myObject);
myObject.stack; // Similar to `new Error().stack`
The first line of the trace will be prefixed with
${myObject.name}: ${myObject.message}.
The optional constructorOpt argument accepts a function. If given, all frames
above constructorOpt, including constructorOpt, will be omitted from the
generated stack trace.
The constructorOpt argument is useful for hiding implementation
details of error generation from the user. For instance:
function a() {
b();
}
function b() {
c();
}
function c() {
// Create an error without stack trace to avoid calculating the stack trace twice.
const { stackTraceLimit } = Error;
Error.stackTraceLimit = 0;
const error = new Error();
Error.stackTraceLimit = stackTraceLimit;
// Capture the stack trace above function b
Error.captureStackTrace(error, b); // Neither function c, nor b is included in the stack trace
throw error;
}
a();
OptionalconstructorOpt: FunctionStaticprepare
Thrown when a capability-gated remote-browser feature is invoked on a driver that does not support it.
Two distinct failure modes both surface as this error:
BaseRemoteBrowserProvidervirtual method (e.g.GetLiveViewUrl,StartScreencast) was called but the concrete driver did not override the base implementation — the base throws this.RequireFeature(...)defense-in-depth guard found the matchingIRemoteBrowserProviderFeaturesflag false/omitted — the metadata claims the feature is off, so the call must not proceed.Carrying both the
FeatureNameand theProviderNamemakes the loud failure actionable: it points at exactly which capability flag lied (or which driver method is missing) for which backend.