Fix overlay IE 11 compatibility (#5203)

194a2910 · Joe Haddad · GitHub · 1e1019ab · 194a2910
Unverified Commit 194a2910 authored 6 years ago by Joe Haddad Committed by GitHub 6 years ago
Hide whitespace changes
Inline Side-by-side

Showing

with 4 additions and 3 deletions
+4 -3
--- a/packages/react-error-overlay/src/utils/mapper.js
+++ b/packages/react-error-overlay/src/utils/mapper.js
@@ -34,9 +34,10 @@ async function map(
  });
  await settle(
    files.map(async fileName => {
-      const fetchUrl = fileName.startsWith('webpack-internal:')
-        ? `/__get-internal-source?fileName=${encodeURIComponent(fileName)}`
-        : fileName;
+      const fetchUrl =
+        fileName.indexOf('webpack-internal:') === 0
+          ? `/__get-internal-source?fileName=${encodeURIComponent(fileName)}`
+          : fileName;

      const fileSource = await fetch(fetchUrl).then(r => r.text());
      const map = await getSourceMap(fileName, fileSource);