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Fix window.atob/window.btoa runtime crashes under Node #1949

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Fix window.atob/window.btoa runtime crashes under Node #1949

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8 changes: 8 additions & 0 deletions src/third_party/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -57,6 +57,14 @@ import {
generateReport as generateReportImpl,
} from './lighthouse-devtools-mcp-bundle.js';

// Some vendored DevTools/Lighthouse code paths call window.atob/window.btoa even
// when running under Node.js. Expose a browser-like alias so those runtime calls
// resolve to Node's global atob/btoa instead of throwing ReferenceError.
if (typeof globalThis.window === 'undefined') {
globalThis.window = globalThis as typeof globalThis & Window & typeof globalThis;
}


export const snapshot = snapshotImpl as (
page: Page,
options: {flags?: Flags},
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