gatsby: GraphiQL not working

The GraphiQL interface (http://localhost:8000/___graphql) open just fine, however it does not work.

We’ve started building the project with Gatsby v1 and we’ve been using GraphiQL just fine. However, since updated to v2, it stopped working. A few seconds after opening the ui, I get this error TypeError: Failed to fetch in the interface and this trace in terminal:

<— Last few GCs —>

[80995:0x104000000] 3433624 ms: Mark-sweep 1381.8 (1428.4) -> 1381.5 (1428.9) MB, 1471.7 / 0.0 ms (average mu = 0.065, current mu = 0.003) allocation failure scavenge might not succeed [80995:0x104000000] 3434727 ms: Mark-sweep 1382.4 (1428.9) -> 1382.0 (1429.4) MB, 1098.9 / 0.0 ms (average mu = 0.040, current mu = 0.004) allocation failure scavenge might not succeed

<— JS stacktrace —>

==== JS stack trace =========================================

Security context: 0x099d2009d9f1 <JSObject> 0: builtin exit frame: stringify(this=0x099d200909c1 <Object map = 0x99d42283e21>,0x099d185025b1 <undefined>,0x099d185025b1 <undefined>,0x099d85f02201 <Object map = 0x99deeb32f91>,0x099d200909c1 <Object map = 0x99d42283e21>)

1: arguments adaptor frame: 1->3
2: stringify(aka stringify) [0x99d968bec61] [/Users/bogdan/Dev/kaizen/kaizen-2018/node_modules/express/lib/response.js:1119] [b...

FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory 1: 0x1000623a3 node::Abort() [/usr/local/bin/node] 2: 0x100062c0a node::FatalTryCatch::~FatalTryCatch() [/usr/local/bin/node] 3: 0x1001a2227 v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, bool) [/usr/local/bin/node] 4: 0x1001a21c4 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, bool) [/usr/local/bin/node] 5: 0x1005a68a2 v8::internal::Heap::FatalProcessOutOfMemory(char const*) [/usr/local/bin/node] 6: 0x1005a8dd3 v8::internal::Heap::CheckIneffectiveMarkCompact(unsigned long, double) [/usr/local/bin/node] 7: 0x1005a5308 v8::internal::Heap::PerformGarbageCollection(v8::internal::GarbageCollector, v8::GCCallbackFlags) [/usr/local/bin/node] 8: 0x1005a34c5 v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags) [/usr/local/bin/node] 9: 0x1005afd6c v8::internal::Heap::AllocateRawWithLightRetry(int, v8::internal::AllocationSpace, v8::internal::AllocationAlignment) [/usr/local/bin/node] 10: 0x1005afdef v8::internal::Heap::AllocateRawWithRetryOrFail(int, v8::internal::AllocationSpace, v8::internal::AllocationAlignment) [/usr/local/bin/node] 11: 0x100581c74 v8::internal::Factory::NewRawTwoByteString(int, v8::internal::PretenureFlag) [/usr/local/bin/node] 12: 0x1008bc54b v8::internal::IncrementalStringBuilder::Extend() [/usr/local/bin/node] 13: 0x10068a257 v8::internal::JsonStringifier::SerializeString(v8::internal::Handlev8::internal::String) [/usr/local/bin/node] 14: 0x10068e46d v8::internal::JsonStringifier::Result v8::internal::JsonStringifier::Serialize_<true>(v8::internal::Handlev8::internal::Object, bool, v8::internal::Handlev8::internal::Object) [/usr/local/bin/node] 15: 0x10068b328 v8::internal::JsonStringifier::SerializeJSReceiverSlow(v8::internal::Handlev8::internal::JSReceiver) [/usr/local/bin/node] 16: 0x10068bc63 v8::internal::JsonStringifier::Result v8::internal::JsonStringifier::Serialize_<false>(v8::internal::Handlev8::internal::Object, bool, v8::internal::Handlev8::internal::Object) [/usr/local/bin/node] 17: 0x10068eec3 v8::internal::JsonStringifier::Result v8::internal::JsonStringifier::Serialize_<true>(v8::internal::Handlev8::internal::Object, bool, v8::internal::Handlev8::internal::Object) [/usr/local/bin/node] 18: 0x10068b328 v8::internal::JsonStringifier::SerializeJSReceiverSlow(v8::internal::Handlev8::internal::JSReceiver) [/usr/local/bin/node] 19: 0x10068bc63 v8::internal::JsonStringifier::Result v8::internal::JsonStringifier::Serialize_<false>(v8::internal::Handlev8::internal::Object, bool, v8::internal::Handlev8::internal::Object) [/usr/local/bin/node] 20: 0x10068eec3 v8::internal::JsonStringifier::Result v8::internal::JsonStringifier::Serialize_<true>(v8::internal::Handlev8::internal::Object, bool, v8::internal::Handlev8::internal::Object) [/usr/local/bin/node] 21: 0x10068b328 v8::internal::JsonStringifier::SerializeJSReceiverSlow(v8::internal::Handlev8::internal::JSReceiver) [/usr/local/bin/node] 22: 0x10068def4 v8::internal::JsonStringifier::Result v8::internal::JsonStringifier::Serialize_<true>(v8::internal::Handlev8::internal::Object, bool, v8::internal::Handlev8::internal::Object) [/usr/local/bin/node] 23: 0x10068b328 v8::internal::JsonStringifier::SerializeJSReceiverSlow(v8::internal::Handlev8::internal::JSReceiver) [/usr/local/bin/node] 24: 0x10068def4 v8::internal::JsonStringifier::Result v8::internal::JsonStringifier::Serialize_<true>(v8::internal::Handlev8::internal::Object, bool, v8::internal::Handlev8::internal::Object) [/usr/local/bin/node] 25: 0x10068ce16 v8::internal::JsonStringifier::Result v8::internal::JsonStringifier::Serialize_<false>(v8::internal::Handlev8::internal::Object, bool, v8::internal::Handlev8::internal::Object) [/usr/local/bin/node] 26: 0x1006889ae v8::internal::JsonStringify(v8::internal::Isolate*, v8::internal::Handlev8::internal::Object, v8::internal::Handlev8::internal::Object, v8::internal::Handlev8::internal::Object) [/usr/local/bin/node] 27: 0x10025a9f9 v8::internal::Builtin_JsonStringify(int, v8::internal::Object**, v8::internal::Isolate*) [/usr/local/bin/node] 28: 0xe377644fcdd 29: 0xe37764076a6 30: 0xe377640e458 31: 0xe377640e458 Abort trap: 6