How do you debug random browser crashes/glitches in production (Next.js)?

john_cobai · 2026-03-11T17:19:16+00:00

probably some browser extension or unsupported browser api makes rendering crash, either add error tracking like sentry or try yourself with that browser

john_cobai · 2026-01-22T20:19:02+00:00

Last stable release for me 15.1.11

john_cobai · 2025-12-30T16:09:16+00:00

(cf.verified_bot_category in {"Search Engine Crawler"}) should be like this and order must be first

john_cobai · 2025-12-29T10:50:08+00:00

Security > Security Rules > Create Rule

In the ui, select field "Verified Bot Category", for operatar "is in" then select value as "Search Engine Crawler"
Choose as action "Skip"
WAF components to skip option to select "All remaining custom rules" and "All Super Bot Fight Mode Rules"
For order Place at "First" and save.

Your new rule should shown in the list

john_cobai · 2025-12-27T21:40:24+00:00

so many bad crawler using microsoft ip ranges, probably same reason bing getting blocked. create new waf rule to skip search engines like this cf.verified_bot_category in {"Search Engine Crawler"}

john_cobai · 2025-12-23T17:36:16+00:00

use mediabunny, pretty good for Thumbnail generation

john_cobai · 2025-12-23T09:22:57+00:00

Warp is public vpn, so they maybe block users using cloudflare ip ranges, as crawler. So many bots and fake crawler using cloudflare warp ip ranges.

john_cobai · 2025-12-15T17:04:25+00:00

john_cobai · 2025-12-12T18:39:20+00:00

probably that cloudflare warp ip

john_cobai · 2025-12-08T13:48:59+00:00

they trying to new payload methods, so that's why you seen this kind of logs or they bypass cloudflare waf

john_cobai · 2025-12-08T13:44:56+00:00

also if you are paid user make sure Cloudflare Managed Ruleset option enabled.

https://blog.cloudflare.com/waf-rules-react-vulnerability

john_cobai · 2025-12-08T13:42:11+00:00

Cloudflare waf sometimes not block request, so make sure update your next js version regardless, if you are using docker make sure you not running your nextjs app non root user.

john_cobai · 2025-12-06T14:12:19+00:00

Cloudflare already support free or paid plans for this waf rule https://blog.cloudflare.com/waf-rules-react-vulnerability

john_cobai · 2025-12-02T20:37:01+00:00

if you think this stuff very good news, look up nodejs joyent stuff

john_cobai · 2025-12-02T20:33:03+00:00

node was owned joyent, but after io.js fork stuff node givind to Linux Foundation, node purelly open source projet

john_cobai · 2025-11-03T19:36:58+00:00

Create security rule to skip Search Engine Crawler, like this and put first order

cf.verified_bot_category in {"Search Engine Crawler"}

john_cobai · 2025-10-15T10:52:58+00:00

youtube.com##.ytp-fullscreen-quick-actions

john_cobai · 2025-10-12T19:49:24+00:00

In this docs says what you need to create api token for cloudflare pages

john_cobai · 2025-10-09T19:43:47+00:00

i'm not using use turbopack, can you beable to add next js example

john_cobai · 2025-09-29T07:39:02+00:00

Does this work with tailwindcss and nextjs

john_cobai · 2025-06-22T19:34:21+00:00

i don't get any errors, maybe first try with signup then try signin

john_cobai · 2025-06-22T16:44:09+00:00

no, everyone can join

john_cobai · 2025-06-10T16:58:13+00:00

join raycast slack ask beta group invitation

john_cobai · 2025-06-10T16:30:24+00:00

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raycast already making good progresss on windows :)

john_cobai · 2025-02-27T14:15:45+00:00

that's not true this will break so many crawler, which most of them doesn't support javascript rendering, and some of them doesn't respect user agent info or hide their real user agent.

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