diff --git a/dist/index.js b/dist/index.js
index 7b40a89..4b8d430 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -1,4 +1,21 @@
 "use strict";
+// polyfill throwIfAborted which seems to be missing in react-native, but ky
+// uses it
+//
+// Fun fact, AbortSignal here is just a react-native polyfill, too:
+// https://github.com/facebook/react-native/blob/838d26d7b534133e75c7fa673dfc849b0e64c9d3/packages/react-native/Libraries/Core/setUpXHR.js#L38
+//
+// Unfortunately it doesn't have a `reason`
+//
+// ref: https://github.com/tjmehta/fast-abort-controller/blob/42588908035d1512f90e7299a2c70dfb708f9620/src/FastAbortSignal.ts#L39
+if (!AbortSignal.prototype.throwIfAborted) {
+  AbortSignal.prototype.throwIfAborted = function() {
+    if (this.aborted) {
+      throw new Error('Aborted')
+    }
+  }
+}
+
 var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
     if (k2 === undefined) k2 = k;
     var desc = Object.getOwnPropertyDescriptor(m, k);
@@ -15,7 +32,9 @@ var __exportStar = (this && this.__exportStar) || function(m, exports) {
 };
 Object.defineProperty(exports, "__esModule", { value: true });
 exports.FetchResponseError = exports.FetchRequestError = exports.FetchError = void 0;
-require("core-js/modules/es.symbol.dispose");
+if (typeof Symbol.dispose === 'undefined') {
+  Symbol.dispose = Symbol('Symbol.dispose');
+}
 __exportStar(require("@atproto-labs/did-resolver"), exports);
 var fetch_1 = require("@atproto-labs/fetch");
 Object.defineProperty(exports, "FetchError", { enumerable: true, get: function () { return fetch_1.FetchError; } });
diff --git a/dist/oauth-server-agent.js b/dist/oauth-server-agent.js
index 239cb0e..e98b656 100644
--- a/dist/oauth-server-agent.js
+++ b/dist/oauth-server-agent.js
@@ -169,10 +169,16 @@ class OAuthServerAgent {
      * @returns The user's PDS URL (the resource server for the user)
      */
     async verifyIssuer(sub) {
+        const AbortSignal_timeout = (delay) => {
+            const controller = new AbortController();
+            const timeout = setTimeout(() => controller.abort(), delay);
+            return controller.signal;
+        };
+
         const resolved = await this.oauthResolver.resolveFromIdentity(sub, {
             noCache: true,
             allowStale: false,
-            signal: AbortSignal.timeout(10e3),
+            signal: AbortSignal_timeout(10e3),
         });
         if (this.issuer !== resolved.metadata.issuer) {
             // Best case scenario; the user switched PDS. Worst case scenario; a bad
diff --git a/dist/session-getter.js b/dist/session-getter.js
index 5d41957..f279a0c 100644
--- a/dist/session-getter.js
+++ b/dist/session-getter.js
@@ -237,11 +237,17 @@ class SessionGetter extends simple_store_1.CachedGetter {
      */
     async get(sub, options) {
         const session = await this.runtime.usingLock(`@atproto-oauth-client-${sub}`, async () => {
+            const AbortSignal_timeout = (delay) => {
+                const controller = new AbortController();
+                const timeout = setTimeout(() => controller.abort(), delay);
+                return controller.signal;
+            };
+
             const env_1 = { stack: [], error: void 0, hasError: false };
             try {
                 // Make sure, even if there is no signal in the options, that the
                 // request will be cancelled after at most 30 seconds.
-                const signal = AbortSignal.timeout(30e3);
+                const signal = AbortSignal_timeout(30e3);
                 const abortController = __addDisposableResource(env_1, (0, util_js_1.combineSignals)([options?.signal, signal]), false);
                 return await super.get(sub, {
                     ...options,