Add changeset for encoding parameter fix

ghostwriternr · ghostwriternr · commit 228ef5b6e57f · 2025-11-10T18:36:15.000Z
diff --git a/.changeset/fix-encoding-parameter.md b/.changeset/fix-encoding-parameter.md
@@ -0,0 +1,5 @@
+---
+'@cloudflare/sandbox': patch
+---
+
+Fix encoding parameter handling in file operations to enable MIME auto-detection. Previously, SDK and container handlers added default 'utf8' encoding, preventing MIME-based detection of binary files. Now encoding parameter is passed through as-is, allowing automatic detection when not explicitly specified.

-Original file line number
+Diff line change
@@ @@ -0,0 +1,5 @@ @@
 +---
 +'@cloudflare/sandbox': patch
 +---
++
 +Fix encoding parameter handling in file operations to enable MIME auto-detection. Previously, SDK and container handlers added default 'utf8' encoding, preventing MIME-based detection of binary files. Now encoding parameter is passed through as-is, allowing automatic detection when not explicitly specified.