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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Explainer: https://github.com/explainers-by-googlers/fetch-retry.
// Note: In the final form, we might remove some of these settings if e.g. we
// ended up not having use cases for them / browser-controlled policies are
// enough. We will re-evaluate them after origin trial.
dictionary RetryOptions {
// Required: Maximum number of retry attempts after the initial one fails.
// A value of 0 means no retries beyond the initial attempt.
required unsigned long maxAttempts;
// Optional: Delay before the first retry attempt in milliseconds.
// Defaults to browser-configured value if not specified.
unsigned long? initialDelay;
// Optional: Multiplier for increasing delay between retries (e.g., 2.0 for exponential backoff).
// A factor of 1.0 means fixed delay. Defaults to browser-configured value if not specified.
double? backoffFactor;
// Optional: Maximum total time allowed for all retry attempts in milliseconds,
// measured from when the first attempt fails. If this duration is exceeded,
// no further retries will be made, even if maxAttempts has not been reached.
// Defaults to browser-configured value if not specified.
unsigned long? maxAge;
// Optional: Controls whether the browser should continue attempting retries
// even after the originating document has been unloaded.
// This requires `keepalive: true` to be set on the Request.
// Defaults to false.
boolean retryAfterUnload = false;
// Optional: Specifies whether to retry when the HTTP request method is
// non-idempotent (e.g. POST, PUT, DELETE). If this is not set while the HTTP
// request method of the fetch is non-idempotent, no retry will be attempted.
// Defaults to false.
boolean retryNonIdempotent = false;
// Optional: Specifies whether to retry when the network request is guaranteed
// to have not reach the server yet (e.g. a connection can't be established).
boolean retryOnlyIfServerUnreached = false;
};
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