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Fail early, in modern GENERIC builds, if globalThis isn't available (PR 11799 follow-up, issue 12596) #12598

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Merged
merged 1 commit into from
Nov 7, 2020
Merged

Fail early, in modern GENERIC builds, if globalThis isn't available (PR 11799 follow-up, issue 12596) #12598

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7 changes: 4 additions & 3 deletions src/core/worker.js
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Original file line number Diff line number Diff line change
Expand Up @@ -143,13 +143,14 @@ class WorkerMessageHandler {
// `ReadableStream` and `Promise.allSettled`).
if (
(typeof PDFJSDev === "undefined" || PDFJSDev.test("SKIP_BABEL")) &&
(typeof ReadableStream === "undefined" ||
(typeof globalThis === "undefined" ||
typeof ReadableStream === "undefined" ||
typeof Promise.allSettled === "undefined")
) {
throw new Error(
"The browser/environment lacks native support for critical " +
"functionality used by the PDF.js library (e.g. " +
"`ReadableStream` and/or `Promise.allSettled`); " +
"functionality used by the PDF.js library (e.g. `globalThis`, " +
"`ReadableStream`, and/or `Promise.allSettled`); " +
"please use an ES5-compatible build instead."
);
}
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