fix: throw error if URL is provided but fetch is not available

nbesli · Jan 27, 2024 · 9764c6f · 9764c6f
1 parent 40f8edd
commit 9764c6f
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/PDFMergerBase.js b/PDFMergerBase.js
@@ -162,6 +162,9 @@ export default class PDFMergerBase {
 
     // see https://developer.mozilla.org/en-US/docs/Web/API/URL
     if (input instanceof URL) {
+      if (typeof fetch === 'undefined') {
+        throw error = new Error('fetch is not defined. You need to use a polyfill for this to work in Node.js.')
+      }
       const res = await fetch(input)
       const aBuffer = await res.arrayBuffer()
       return new Uint8Array(aBuffer)