Reduce createBoundary alphabet range to lowercase + numeric characters only to improve compatibility with extistent Blob implementations.

Author: octet-stream

lib/util/createBoundary.ts

@@ -1,5 +1,8 @@
-const alphabet
-  = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+// TODO: Return uppercase characters back once the spec gets fixed.
+// Keep track on these:
+// 1. https://github.com/whatwg/html/issues/6251
+// 2. https://github.com/w3c/FileAPI/issues/43
+const alphabet = "abcdefghijklmnopqrstuvwxyz0123456789"
 
 /**
  * Generates a boundary string for FormData encoder.

package.json

@@ -41,23 +41,23 @@
   "devDependencies": {
     "@octetstream/eslint-config": "5.0.0",
     "@types/mime-types": "2.1.1",
-    "@types/node": "16.10.2",
+    "@types/node": "16.11.6",
     "@typescript-eslint/eslint-plugin": "4.33.0",
     "@typescript-eslint/parser": "4.33.0",
     "@zoltu/typescript-transformer-append-js-extension": "1.0.1",
     "ava": "3.15.0",
-    "c8": "7.9.0",
+    "c8": "7.10.0",
     "eslint": "7.32.0",
     "eslint-config-airbnb-typescript": "12.3.1",
     "eslint-plugin-ava": "12.0.0",
     "eslint-plugin-jsx-a11y": "6.4.1",
     "eslint-plugin-react": "7.26.1",
-    "formdata-node": "4.3.0",
-    "husky": "7.0.2",
-    "lint-staged": "11.2.0",
+    "formdata-node": "4.3.1",
+    "husky": "7.0.4",
+    "lint-staged": "11.2.6",
     "pinst": "2.1.6",
-    "ts-node": "10.2.1",
+    "ts-node": "10.4.0",
     "ttypescript": "1.5.12",
-    "typescript": "4.4.3"
+    "typescript": "4.4.4"
   }
 }