Grabbed dndbeyond's source code

```
~/go/bin/sourcemapper -output ddb -jsurl https://media.dndbeyond.com/character-app/static/js/main.90aa78c5.js
```

ddb_main/node_modules/uuid/dist/esm-browser/regex.js

@@ -0,0 +1 @@
+export default /^(?:[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|00000000-0000-0000-0000-000000000000)$/i;

ddb_main/node_modules/uuid/dist/esm-browser/rng.js

@@ -0,0 +1,19 @@
+// Unique ID creation requires a high quality random # generator. In the browser we therefore
+// require the crypto API and do not support built-in fallback to lower quality random number
+// generators (like Math.random()).
+var getRandomValues;
+var rnds8 = new Uint8Array(16);
+export default function rng() {
+  // lazy load so that environments that need to polyfill have a chance to do so
+  if (!getRandomValues) {
+    // getRandomValues needs to be invoked in a context where "this" is a Crypto implementation. Also,
+    // find the complete implementation of crypto (msCrypto) on IE11.
+    getRandomValues = typeof crypto !== 'undefined' && crypto.getRandomValues && crypto.getRandomValues.bind(crypto) || typeof msCrypto !== 'undefined' && typeof msCrypto.getRandomValues === 'function' && msCrypto.getRandomValues.bind(msCrypto);
+
+    if (!getRandomValues) {
+      throw new Error('crypto.getRandomValues() not supported. See https://github.com/uuidjs/uuid#getrandomvalues-not-supported');
+    }
+  }
+
+  return getRandomValues(rnds8);
+}

ddb_main/node_modules/uuid/dist/esm-browser/stringify.js

@@ -0,0 +1,30 @@
+import validate from './validate.js';
+/**
+ * Convert array of 16 byte values to UUID string format of the form:
+ * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
+ */
+
+var byteToHex = [];
+
+for (var i = 0; i < 256; ++i) {
+  byteToHex.push((i + 0x100).toString(16).substr(1));
+}
+
+function stringify(arr) {
+  var offset = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
+  // Note: Be careful editing this code!  It's been tuned for performance
+  // and works in ways you may not expect. See https://github.com/uuidjs/uuid/pull/434
+  var uuid = (byteToHex[arr[offset + 0]] + byteToHex[arr[offset + 1]] + byteToHex[arr[offset + 2]] + byteToHex[arr[offset + 3]] + '-' + byteToHex[arr[offset + 4]] + byteToHex[arr[offset + 5]] + '-' + byteToHex[arr[offset + 6]] + byteToHex[arr[offset + 7]] + '-' + byteToHex[arr[offset + 8]] + byteToHex[arr[offset + 9]] + '-' + byteToHex[arr[offset + 10]] + byteToHex[arr[offset + 11]] + byteToHex[arr[offset + 12]] + byteToHex[arr[offset + 13]] + byteToHex[arr[offset + 14]] + byteToHex[arr[offset + 15]]).toLowerCase(); // Consistency check for valid UUID.  If this throws, it's likely due to one
+  // of the following:
+  // - One or more input array values don't map to a hex octet (leading to
+  // "undefined" in the uuid)
+  // - Invalid input values for the RFC `version` or `variant` fields
+
+  if (!validate(uuid)) {
+    throw TypeError('Stringified UUID is invalid');
+  }
+
+  return uuid;
+}
+
+export default stringify;

ddb_main/node_modules/uuid/dist/esm-browser/v4.js

@@ -0,0 +1,24 @@
+import rng from './rng.js';
+import stringify from './stringify.js';
+
+function v4(options, buf, offset) {
+  options = options || {};
+  var rnds = options.random || (options.rng || rng)(); // Per 4.4, set bits for version and `clock_seq_hi_and_reserved`
+
+  rnds[6] = rnds[6] & 0x0f | 0x40;
+  rnds[8] = rnds[8] & 0x3f | 0x80; // Copy bytes to buffer, if provided
+
+  if (buf) {
+    offset = offset || 0;
+
+    for (var i = 0; i < 16; ++i) {
+      buf[offset + i] = rnds[i];
+    }
+
+    return buf;
+  }
+
+  return stringify(rnds);
+}
+
+export default v4;

ddb_main/node_modules/uuid/dist/esm-browser/validate.js

@@ -0,0 +1,7 @@
+import REGEX from './regex.js';
+
+function validate(uuid) {
+  return typeof uuid === 'string' && REGEX.test(uuid);
+}
+
+export default validate;