Deployment: typo in tolerations breaks the webpage

[Helmut-Onna]

Hello!
I was trying the validator (very nice!) and when playing with modifying some keys (eg nodeAffinity to nodeAffinityTypo) to confirm the validation, I hit a stop when doing a typo for tolerations.

I.e.:
When I generate a typo on purpose, like containerss: I get the validation error, all good.
But when I do tolerationss: the web page goes blank.

Example yaml:

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: nginx-ingress
  name: nginx-ingress-controller
spec:
  selector:
    matchLabels:
      app: nginx-ingress
  template:
    metadata:
      labels:
        app: nginx-ingress
    spec:
      containers:
        - name: nginx-ingress-controller
          image: "nginx/nginx-ingress"
      tolerationss:
        - effect: NoSchedule
          key: core
          operator: Equal
          value: "true"

Browser: Chrome
Version: 90.0.4430.212 (Official Build) (x86_64)

Browser errors:

www.googletagmanager.com/gtag/js?id=UA-125983530-1:1 Failed to load resource: net::ERR_BLOCKED_BY_CLIENT
react-dom.production.min.js:209 TypeError: Cannot read property 'node' of undefined
    at e.value (Document.js:49)
    at e.value (Document.js:38)
    at e.value (Document.js:38)
    at e.value (Document.js:38)
    at e.value (Document.js:38)
    at new e (Document.js:19)
    at a.value (App.js:147)
    at a.value (App.js:232)
    at Ho (react-dom.production.min.js:182)
    at jo (react-dom.production.min.js:181)
ea @ react-dom.production.min.js:209
n.callback @ react-dom.production.min.js:226
fi @ react-dom.production.min.js:131
ia @ react-dom.production.min.js:212
pc @ react-dom.production.min.js:255
t.unstable_runWithPriority @ scheduler.production.min.js:19
Gr @ react-dom.production.min.js:122
dc @ react-dom.production.min.js:248
Za @ react-dom.production.min.js:239
(anonymous) @ react-dom.production.min.js:123
t.unstable_runWithPriority @ scheduler.production.min.js:19
Gr @ react-dom.production.min.js:122
Wr @ react-dom.production.min.js:123
Yr @ react-dom.production.min.js:122
Va @ react-dom.production.min.js:230
enqueueSetState @ react-dom.production.min.js:132
v.setState @ react.production.min.js:12
value @ App.js:101
r.onreadystatechange @ validation.js:16
XMLHttpRequest.send (async)
value @ validation.js:24
c @ index.js:27
setTimeout (async)
u @ index.js:38
value @ App.js:119
ia @ react-dom.production.min.js:212
pc @ react-dom.production.min.js:255
t.unstable_runWithPriority @ scheduler.production.min.js:19
Gr @ react-dom.production.min.js:122
dc @ react-dom.production.min.js:248
Za @ react-dom.production.min.js:239
(anonymous) @ react-dom.production.min.js:123
t.unstable_runWithPriority @ scheduler.production.min.js:19
Gr @ react-dom.production.min.js:122
Wr @ react-dom.production.min.js:123
Yr @ react-dom.production.min.js:122
(anonymous) @ react-dom.production.min.js:239
x @ react-dom.production.min.js:287
B @ react-dom.production.min.js:18
U @ react-dom.production.min.js:19
Jt @ react-dom.production.min.js:70
$t @ react-dom.production.min.js:69
t.unstable_runWithPriority @ scheduler.production.min.js:19
Gr @ react-dom.production.min.js:122
L @ react-dom.production.min.js:287
Xt @ react-dom.production.min.js:68
react-dom.production.min.js:123 Uncaught TypeError: Cannot read property 'node' of undefined
    at e.value (Document.js:49)
    at e.value (Document.js:38)
    at e.value (Document.js:38)
    at e.value (Document.js:38)
    at e.value (Document.js:38)
    at new e (Document.js:19)
    at a.value (App.js:147)
    at a.value (App.js:232)
    at Ho (react-dom.production.min.js:182)
    at jo (react-dom.production.min.js:181)
value @ Document.js:49
value @ Document.js:38
value @ Document.js:38
value @ Document.js:38
value @ Document.js:38
e @ Document.js:19
value @ App.js:147
value @ App.js:232
Ho @ react-dom.production.min.js:182
jo @ react-dom.production.min.js:181
ma @ react-dom.production.min.js:263
uc @ react-dom.production.min.js:246
ac @ react-dom.production.min.js:246
Za @ react-dom.production.min.js:239
(anonymous) @ react-dom.production.min.js:123
t.unstable_runWithPriority @ scheduler.production.min.js:19
Gr @ react-dom.production.min.js:122
Wr @ react-dom.production.min.js:123
Yr @ react-dom.production.min.js:122
Va @ react-dom.production.min.js:230
enqueueSetState @ react-dom.production.min.js:132
v.setState @ react.production.min.js:12
value @ App.js:101
r.onreadystatechange @ validation.js:16
XMLHttpRequest.send (async)
value @ validation.js:24
c @ index.js:27
setTimeout (async)
u @ index.js:38
value @ App.js:119
ia @ react-dom.production.min.js:212
pc @ react-dom.production.min.js:255
t.unstable_runWithPriority @ scheduler.production.min.js:19
Gr @ react-dom.production.min.js:122
dc @ react-dom.production.min.js:248
Za @ react-dom.production.min.js:239
(anonymous) @ react-dom.production.min.js:123
t.unstable_runWithPriority @ scheduler.production.min.js:19
Gr @ react-dom.production.min.js:122
Wr @ react-dom.production.min.js:123
Yr @ react-dom.production.min.js:122
(anonymous) @ react-dom.production.min.js:239
x @ react-dom.production.min.js:287
B @ react-dom.production.min.js:18
U @ react-dom.production.min.js:19
Jt @ react-dom.production.min.js:70
$t @ react-dom.production.min.js:69
t.unstable_runWithPriority @ scheduler.production.min.js:19
Gr @ react-dom.production.min.js:122
L @ react-dom.production.min.js:287
Xt @ react-dom.production.min.js:68