[مغلق] Gear page javascript code not working after translating page using WPML.

Background of the issue:
I am trying to translate a page with WPML. The issue can be seen on this page: الرابط المخفي. I expected to see the original JavaScript code: headings.forEach(heading => { // ... });

Symptoms:
After translation by WPML, the JavaScript code appears as: headings.forEach(heading => { // ... }); The => operator is replaced with =>, causing the code to break.

Questions:
Why is the JavaScript code being altered during translation?
How can I prevent WPML from replacing symbols in my JavaScript code?