How to track an error in loading a script on a website?

A

angelzzz2017-05-12 11:28:04

JavaScript

angelzzz, 2017-05-12 11:28:04

Good afternoon!
The error is repeated on several sites based on CMS Opencat. After clicking on the buy button, the page hangs and the button becomes unavailable. How can I trace the cause of the freeze? Are there any services? Ways?

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2 answer(s)

A

Anvar Shakhmaev, 2017-05-12
@RxR

Ways?

Straight arms + console + debugger

K

Kirill Krasin, 2017-05-12
@Mo45

In Chrome , Ctrl+Shift+I tabs Console , Network and forward.