Fix error rethrowing in lambda Apollo server (#5085)

CHANGELOG.md

@@ -14,6 +14,7 @@ The version headers in this history reflect the versions of Apollo Server itself
 - `apollo-server-core`: Add optional argument to `ApolloServer.executeOperation` allowing the caller to manually specify an argument to the `config` function analogous to that provided by integration packages. [PR #4166](https://github.com/apollographql/apollo-server/pull/4166) [Issue #2886](https://github.com/apollographql/apollo-server/issues/2886)
 - `apollo-server-cache-redis`: New `BaseRedisCache` class which takes an `ioredis`-compatible Redis client as an argument. The existing classes `RedisCache` and `RedisClusterCache` (which pass their arguments to `ioredis` constructors) are now implemented in terms of this class. This allows you to use any of the `ioredis` constructor forms rather than just the ones recognized by our classes. This also fixes a long-standing bug where the Redis cache implementations returned a number from `delete()`; it now returns a number, matching what the `KeyValueCache` interface and the TypeScript types expect. [PR #5034](https://github.com/apollographql/apollo-server/pull/5034) [PR #5088](https://github.com/apollographql/apollo-server/pull/5088) [Issue #4870](https://github.com/apollographql/apollo-server/issues/4870) [Issue #5006](https://github.com/apollographql/apollo-server/issues/5006)
 - `apollo-server-core`: Fix type for `formatResponse` function. It never is called with a `null` argument, and is allowed to return `null`. [Issue #5009](https://github.com/apollographql/apollo-server/issues/5009) [PR #5089](https://github.com/apollographql/apollo-server/pull/5089)
+- `apollo-server-lambda`: Fix regression in v2.21.2 where thrown errors were replaced by throwing the JS Error class itself. [PR #5085](https://github.com/apollographql/apollo-server/pull/5085)
 
 ## v2.22.2
 

packages/apollo-server-lambda/src/ApolloServer.ts

@@ -354,7 +354,7 @@ export class ApolloServer extends ApolloServerBase {
               },
             };
           } catch (error) {
-            if (error.name !== 'HttpQueryError') throw Error;
+            if (error.name !== 'HttpQueryError') throw error;
             const httpQueryError = error as HttpQueryError;
             return {
               body: httpQueryError.message,