Merge pull request #5685 from overleaf/jpa-web-no-cdn

[web] add support for nocdn fallback on marketing pages

GitOrigin-RevId: c125c44f9187de7e1127c77311c54bef7c4b86c9

services/web/app/views/layout-marketing.pug

@@ -136,3 +136,12 @@ html(
 		block foot-scripts
 			each file in entrypointScripts(entrypoint)
 				script(type="text/javascript", nonce=scriptNonce, src=file)
+			script(type="text/javascript", nonce=scriptNonce).
+				//- Look for bundle
+				var cdnBlocked = typeof Frontend === 'undefined'
+				//- Prevent loops
+				var noCdnAlreadyInUrl = window.location.href.indexOf("nocdn=true") != -1
+				if (cdnBlocked && !noCdnAlreadyInUrl && navigator.userAgent.indexOf("Googlebot") == -1) {
+					//- Set query param, server will not set CDN url
+					window.location.search += "&nocdn=true";
+				}