Cannot access FCC from certain WiFi location

[AdventureBear]

I get this error when accessing FCC from my favorite coffee shop where I like to work. i have not seen this on any other site I visit:

Response denied by WatchGuard HTTP proxy.

Reason: header-line too large line='Content-Security-Policy: default-src 'self' *.freecodecamp.com *.gstatic.com *.google-analytics.com *.googleapis.com *.google.com *.gstatic.com *.doubleclick.net *.twitter.com *.twitch.tv *.twimg.com 'unsafe-eval' 'unsafe-inline' *.rafflecopter.com *.bootstrapcdn.com *.cloudflare.com https://*.cloudflare.com localhost:3001 ws://localhost:3001/ http://localhost:3001 localhost:3000 ws://localhost:3000/ http://localhost:3000 *.ionicframework.com https://syndication.twitter.com *.youtube.com *.jsdelivr.net https://*.jsdelivr.net *.togetherjs.com https://*.togetherjs.com wss://hub.togetherjs.com *.ytimg.com wss://fcctogether.herokuapp.com *.bitly.com;script-src *.optimizely.com *.aspnetcdn.com 'self' *.freecodecamp.com *.gstatic.com *.google-analytics.com *.googleapis.com *.google.com *.gstatic.com *.doubleclick.net *.twitter.com *.twitch.tv *.twimg.com 'unsafe-eval' 'unsafe-inline' *.rafflecopter.com *.bootstrapcdn.com *.cloudflare.com https://*.cloudfl' 
Method: GET 
Host: www.freecodecamp.com 
Path: / 

[BerkeleyTrue]

Unfortunately, this is out of our control. This is being blocked by the coffee shops firewall. You may try asking the coffee shop if they can lighten their controls. Seems kinda weird to block based on header length but some companies are pretty paranoid.