Upgrade to Pro — share decks privately, control downloads, hide ads and more …

5文字で書くJavaScript/ Shibuya.XSS techtalk #10

Masato Kinugawa
December 13, 2017
Technology
35
18k

5文字で書くJavaScript/ Shibuya.XSS techtalk #10

Shibuya.XSS techtalk #10 の発表資料です。

Masato Kinugawa

December 13, 2017
Tweet

More Decks by Masato Kinugawa

See All by Masato Kinugawa
JSでDoSる/ Shibuya.XSS techtalk #11
masatokinugawa
21
5.7k
Electron: Abusing the lack of context isolation - CureCon(en)
masatokinugawa
5
81k
Electron: Context Isolationの欠如を利用した任意コード実行 / Electron: Abusing the lack of context isolation - CureCon(ja)
masatokinugawa
9
17k
バグハンターが見てきたBug Bountyの7年 / LINE Developer Meetup #34 Security Bug Bounty
masatokinugawa
18
11k
ブラウザのUIのバグを探す / Secusoba PopUnder
masatokinugawa
2
1.6k
攻撃者視点で見る Service Worker / PWA Study SW
masatokinugawa
20
23k
USAGE OF XSS FILTER
masatokinugawa
4
2.4k
XSSフィルターの使い方/ Shibuya.XSS techtalk #9
masatokinugawa
7
2.5k
XSS Attacks through PATH
masatokinugawa
8
16k

Other Decks in Technology

See All in Technology
マトリクス型組織の導入後の変化を定量的に捉える
hagevvashi
0
260
「いちユーザーがPHPに新機能を追加するまで/PHPConference 2022」
colopl
1
590
aws-vault を使った セキュアなアクセスキー管理 / Manage AWS Access Key More Securely By Using aws-vault
kizashi1122
0
130
開発支援のための組織体制 〜ゆめみの情報共有と成長環境〜 / abceed Tech Night yumemi
usamik26
0
240
けっきょくmROS 2ってなんなのか？
takasehideki
0
200
カラーミーショップの改善におけるSRE活動について
homirun
0
260
テスト設計のとき何を考えてるの？ QA2年生が語ってみるの
freee
0
150
Get the best of both worlds - Integrating Rust with other languages
haraldreingruber
0
110
Zigでコンテナランタイム作ってみた
line_developers
PRO
4
1.3k
Evolving JUnit 5
marcphilipp
5
1.2k
LOWYAにおける負荷対策と高速化~GraphQL Caching on Amazon CloudFront with AWS Prototyping Program~
datahaikuninja
1
130
【Oracle Cloud ウェビナー】一目瞭然！Microsoft Azureから使える、新しいOracle DatabaseのPaaSサービスを使ってみよう！(2022年9月21日)
oracle4engineer
PRO
0
140

Featured

See All Featured
Designing for Performance
lara
597
64k
Fashionably flexible responsive web design (full day workshop)
malarkey
396
62k
Documentation Writing (for coders)
carmenintech
49
2.7k
A Tale of Four Properties
chriscoyier
149
21k
Making Projects Easy
brettharned
100
4.4k
Practical Orchestrator
shlominoach
178
8.7k
Mobile First: as difficult as doing things right
swwweet
213
7.6k
Intergalactic Javascript Robots from Outer Space
tanoku
259
25k
How To Stay Up To Date on Web Technology
chriscoyier
780
250k
Imperfection Machines: The Place of Print at Facebook
scottboms
254
12k
Pencils Down: Stop Designing & Start Developing
hursman
113
9.9k
Building a Scalable Design System with Sketch
lauravandoore
450
30k

Transcript

  1. |>|>|>|>|>|>|>|>|>|>|>|>|>|>|>|>|>|> >|>|>|>|>|>|>|>|>|>|>|>|>|>|>|>|>|> |>|>|>|>|>|>|>|>|>|>|> |>|>|>|>|>|>|>|>|>|>|>

  2. • • •

  3. None
  4. None

  5. • • http://utf-8.jp/public/jjencode.html

  6. • •

  7. • • 0 1 2 3 4 5 6 7

    8 9 a b c d e f g h i j k l m n o p q r s t u v w x y z A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
  8. None
  9. None

  10. BANG!

  11. |>

  12. https://github.com/tc39/proposal-pipeline-operator The pipeline operator is essentially a useful syntactic sugar

    on a function call with a single argument. |>

  13. alert(1)

  14. 1 |> alert

  15. • []()!+|> 8-2=6

  16. • [] !+|> 6-1=5

  17. • []+|> 5

  18. • • •

  19. None

  20. • •

  21. > Function("alert(1)") < ƒ anonymous() {alert(1)}

  22. > Function("alert(1)")() OK

  23. > [].constructor

  24. > []["constructor"]

  25. > []["constructor"] === Array < true > []["constructor"]["constructor"] === Function

    < true

  26. > []["constructor"]["constructor"]("alert(1)")() OK

  27. > []["constructor"]["constructor"]("CODE")()

  28. > []["constructor"]["constructor"]("CODE")()

  29. > "CODE"|>[]["constructor"]["constructor"] > []["constructor"]["constructor"]("CODE")

  30. > []|>"CODE"|>[]["constructor"]["constructor"] > []["constructor"]["constructor"]("CODE")()

  31. exclaim(capitalize(doubleSay("hello"))); "hello" |> doubleSay |> capitalize |> exclaim;

  32. > ("CODE"|>[]["constructor"]["constructor"])()

  33. > ["CODE"|>[]["constructor"]["constructor"]][0]() ( Expression ) [ Expression ][0]

  34. > []|>["CODE"|>[]["constructor"]["constructor"]][0]

  35. > []|>["CODE"|>[]["constructor"]["constructor"]][0]

  36. //JSFuckの基本型 []["constructor"]["constructor"]("CODE")() //5文字JSの基本型 []|>["CODE"|>[]["constructor"]["constructor"]][0]

  37. None

  38. > +[] < 0

  39. > []>[] < false > [0]>[] < true

  40. > [][[]] < undefined

  41. > +[true][0] < 1 > +[true][0]+[true][0] < 2 > +[true][0]+[true][0]+[true][0]

    < 3 > ...

  42. > [true][0]+[] < "true" > [false][0]+[] < "false" > [undefined][0]+[]

    < "undefined"

  43. > ["true"][0][0] < "t" > ["true"][0][1] < "r" > ["true"][0][2]

    < "u"

  44. > []|>["CODE"|>[]["constructor"]["constructor"]][0]

  45. > []["fill"]+[] < "function fill() { [native code] }"

  46. None

  47. [[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[]]+[]][+[]]+[][[]]][+[]][+[[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+[]][+[]][+[ [+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[[+[]] >[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[]]+[]][+[]]+[][[]]][+[]][+ [[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]> []][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+ [[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[][[]]+[]][+[]][+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]] +[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[+[]]>[]]+[]][+[]][+[]]+[[[+[]]>[]]+[]][+[]][+[[+[]]>[]][+[]]]+[[ [+[]]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[]]+[]][+[]]+[][[ ]]][+[]][+[[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]] [+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[+[]

    ]>[]]+[]][+[]][+[]]+[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[]]+[]][+[]]+[][[]]][+[]][+[[+[]]>[]][+[]]+[+[]]]+ [[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]] ]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[ ]][+[]]]+[[[+[]]>[]]+[]][+[]][+[[+[]]>[]][+[]]]

  48. > []|>["alert(1)"|>[]["constructor"]["constructor"]][0]

  49. []|>[[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[+[]]>[]]+[] ][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[+[]]>[]]+[]][+[]][+[[+[]]>[]][+[]]]+[[[+[]]>[]] +[]][+[]][+[]]+[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[]]+[]][+[]]+[][[]]][+[]][+[[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+ []][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[ [+[]]>[]][+[]]+[+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]+[+[[+[]]>[]][+[]]][+[]]+[[][[[[]>[]]+[]] [+[]][+[]]+[[[[]>[]]+[]][+[]]+[][[]]][+[]][+[[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[] ]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[[+[]]>[]][+[]]+[+[[+[]]>[]][+[] ]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]|>[][[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[]]+[]][+[]]+[][[] ]][+[]][+[[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[ ]]>[]][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[][[[[]>[]]+[]][+

    []][+[]]+[[[[]>[]]+[]][+[]]+[][[]]][+[]][+[[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]> []][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[ +[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[][[]]+[]][+[]][+[[+[]]>[]][+[]]]+[[[]>[]]+ []][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[+[]]>[]]+[]][+[]][+[]]+[[[+[]]>[]]+[]][+[]][+ [[+[]]>[]][+[]]]+[[[+[]]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[] ]+[]][+[]]+[][[]]][+[]][+[[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[] ]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[ [+[]]>[]]+[]][+[]][+[]]+[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[]]+[]][+[]]+[][[]]][+[]][+[[+[]]>[]][+[]]+[+[]]]+ [[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]+[] ][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[ [+[]]>[]]+[]][+[]][+[[+[]]>[]][+[]]]][[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[]]+[]][+[]]+[][[]]][+[]][+[[+[]]>[] ][+[]]+[+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]] >[]][+[]]]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[]] +[]][+[]]+[][[]]][+[]][+[[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[]] +[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[ ]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[][[]]+[]][+[]][+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[ ]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[+[]]>[]]+[]][+[]][+[]]+[[[+[]]>[]]+[]][+[]][+[[+[]]>[]][+[]]]+[ [[+[]]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[]]+[]][+[]]+[][[]]] [+[]][+[[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]] >[]][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[+[]]>[]]+[]][+[]] [+[]]+[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[]]+[]][+[]]+[][[]]][+[]][+[[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+[]][+[]][ +[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[[+[]]>[]] [+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[+[]]>[]]+[]][+[]] [+[[+[]]>[]][+[]]]]][+[]]

  50. []|>[[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[+[]]>[]]+[] ][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[+[]]>[]]+[]][+[]][+[[+[]]>[]][+[]]]+[[[+[]]>[]] +[]][+[]][+[]]+[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[]]+[]][+[]]+[][[]]][+[]][+[[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+ []][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[ [+[]]>[]][+[]]+[+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]+[+[[+[]]>[]][+[]]][+[]]+[[][[[[]>[]]+[]] [+[]][+[]]+[[[[]>[]]+[]][+[]]+[][[]]][+[]][+[[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[] ]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[[+[]]>[]][+[]]+[+[[+[]]>[]][+[] ]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]|>[][[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[]]+[]][+[]]+[][[] ]][+[]][+[[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[ ]]>[]][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[][[[[]>[]]+[]][+

    []][+[]]+[[[[]>[]]+[]][+[]]+[][[]]][+[]][+[[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]> []][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[ +[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[][[]]+[]][+[]][+[[+[]]>[]][+[]]]+[[[]>[]]+ []][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[+[]]>[]]+[]][+[]][+[]]+[[[+[]]>[]]+[]][+[]][+ [[+[]]>[]][+[]]]+[[[+[]]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[] ]+[]][+[]]+[][[]]][+[]][+[[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[] ]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[ [+[]]>[]]+[]][+[]][+[]]+[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[]]+[]][+[]]+[][[]]][+[]][+[[+[]]>[]][+[]]+[+[]]]+ [[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]+[] ][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[ [+[]]>[]]+[]][+[]][+[[+[]]>[]][+[]]]][[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[]]+[]][+[]]+[][[]]][+[]][+[[+[]]>[] ][+[]]+[+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]] >[]][+[]]]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[]] +[]][+[]]+[][[]]][+[]][+[[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[]] +[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[ ]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[][[]]+[]][+[]][+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[ ]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[+[]]>[]]+[]][+[]][+[]]+[[[+[]]>[]]+[]][+[]][+[[+[]]>[]][+[]]]+[ [[+[]]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[]]+[]][+[]]+[][[]]] [+[]][+[[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]] >[]][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[+[]]>[]]+[]][+[]] [+[]]+[[][[[[]>[]]+[]][+[]][+[]]+[[[[]>[]]+[]][+[]]+[][[]]][+[]][+[[+[]]>[]][+[]]+[+[]]]+[[[]>[]]+[]][+[]][ +[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[]>[]]+[]][+[]][+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]]+[]][+[]][+[[+[]]>[]] [+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]+[[+[]]>[]][+[]]]+[[[+[]]>[]]+[]][+[]] [+[[+[]]>[]][+[]]]]][+[]] OK

  51. unescape("%u0051")

  52. https://syllab.fr/projets/experiments/xcharsjs/5chars.pipeline. html https://babeljs.io/repl/build/5099/#?babili=false&browsers=& build=&builtIns=false&code_lz=IwHwfAhgNgpgTgFyA&debug=f alse&circleciRepo=&evaluate=true&lineWrap=false&presets=st age-0&prettier=false&targets=&version=7.0.0- beta.2%2Bpr.6335

  53. • •

  54. |>|>|>|>|>|>|>|>|>|>|>|>|>|>|>|>|>|> >|>|>|>|>|>|>|>|>|>|>|>|>|>|>|>|>|>