Chrome network error · -386 · HTTP

ERR_ZSTD_WINDOW_SIZE_TOO_BIG

Content decoding failed due to the zstd window size being too big (over 8MB).

Chromium's description

Content decoding failed due to the zstd window size being too big (over 8MB).

Chrome shows it as net::ERR_ZSTD_WINDOW_SIZE_TOO_BIG, error -386. puppeteer and Playwright report the same name when a page fails to load in Chromium.

ERR_ZSTD_WINDOW_SIZE_TOO_BIG in the screenshot API

When the page itself fails to load with ERR_ZSTD_WINDOW_SIZE_TOO_BIG, the API answers 502 with the message The target website could not be loaded (ERR_ZSTD_WINDOW_SIZE_TOO_BIG). (target_unreachable). Not billed.

Only the page's own load can fail a render. An image, script or frame of the page that fails with a network error does not: the page is captured as the browser shows it without that resource.

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Rendered in a real browser with cookie banners hidden. Takes 5–30 seconds.

Other common errors

ERR_CONNECTION_RESET ERR_CONNECTION_REFUSED ERR_CONNECTION_TIMED_OUT ERR_CACHE_MISS ERR_ADDRESS_UNREACHABLE ERR_TIMED_OUT ERR_SSL_PROTOCOL_ERROR ERR_CONNECTION_CLOSED ERR_QUIC_PROTOCOL_ERROR ERR_NAME_NOT_RESOLVED ERR_TOO_MANY_REDIRECTS ERR_NETWORK_CHANGED

All 249 Chrome network errors · Screenshot API errors

Screenshot API

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