[Bug]: Playwright driver CDN responds with HTTP 400, `GatewayExceptionResponse`

TL;DR

Playwright driver downloads 400ing through the CDN redirect (playwright.azureedge.net redirecting to the microsoft.com host) was a CDN-side problem, confirmed resolved in the thread.

Steps

1. Playwright driver downloads 400ing through the CDN redirect (playwright.azureedge.net redirecting to the microsoft.com host) was a CDN-side problem, confirmed resolved in the thread. If your playwright install fails with a 400 GatewayExceptionResponse from the CDN, retry before debugging your setup; these download CDN issues have been transient and fixed server-side.

When to use

Use this skill when you run into "[Bug]: Playwright driver CDN responds with HTTP 400, GatewayExceptionResponse".

When not to use

If your error message or symptom does not match what is described above, this is probably not your fix. Search for your exact error text instead of forcing this one to fit.

Versions

Versions mentioned in the source: 1.56.1, 1.56.1-linux.zip. If you are on something much newer or older, the details may have shifted.

Why this happens

The original report does not dig into a root cause. It documents the symptom and the fix that resolved it.

Sources

• https://playwright.azureedge.net/builds/driver/playwright-1.56.1-linux.zip
• https://playwright.download.prss.microsoft.com/dbazure/download/playwright/builds/driver/playwright-1.56.1-linux.zip

In the GitHub issue gh:microsoft/playwright#38273 (https://github.com/microsoft/playwright/issues/38273), the problem reported was: Issue microsoft/playwright#38273 (closed, 47 comments): ### Version 1.56.1 ### Steps to reproduce ``bash curl -Li https://playwright.azureedge.net/builds/driver/playwright-1.56.1-linux.zip returns ``http HTTP/2 307 date: Wed, 19 Nov 2025 12:00:07 GMT content-type: text/html content-length: 0 location: https://playwright.download.prss.microsoft.com/dbazure/download/playwright/builds/driver/playwright-1.56.1-linux.zip x-azure-ref: 20251119T120007Z-16db8cd65796jqtvhC1AMSdgbw00000011d000000000an73 x-cache: CONFIG_NOCACHE HTTP/1.1 400 Bad Request Connection: keep-alive Content-Length: 24 Content-Type: application/json X-Ms-ApiVersion: Distribute... The verified resolution was: Playwright driver downloads 400ing through the CDN redirect (playwright.azureedge.net redirecting to the microsoft.com host) was a CDN-side problem, confirmed resolved in the thread. If your playwright install fails with a 400 GatewayExceptionResponse from the CDN, retry before debugging your setup; these download CDN issues have been transient and fixed server-side.