{"id":8391,"date":"2016-02-17T21:10:19","date_gmt":"2016-02-17T21:10:19","guid":{"rendered":"https:\/\/wp.okra.host\/article\/passenger-backed-apps-perform-unscripted-optimizations\/"},"modified":"2021-03-07T14:08:46","modified_gmt":"2021-03-07T13:08:46","slug":"passenger-backed-apps-perform-unscripted-optimizations","status":"publish","type":"ht_kb","link":"https:\/\/kb.okra.host\/de\/article\/passenger-backed-apps-perform-unscripted-optimizations\/","title":{"rendered":"Von Passagieren unterst\u00fctzte Apps f\u00fchren nicht geskriptete Optimierungen durch"},"content":{"rendered":"

Overview<\/h2>\n

Applications launched through Passenger<\/a>, which includes Node, Python, Ruby, and Meteor, may receive\u00a0optimizations to JavaScript, CSS, and image assets which are not explicitly defined within application logic.<\/p>\n

Take for example a\u00a0small external JavaScript asset that may become\u00a0inlined after the first request<\/em>:<\/p>\n

<head>\r\n<script src=\"\/\/test.js\"\"><\/script>\r\n<!-- rest of head --><\/code><\/pre>\n
becomes:<\/p>\n
<head>\r\n<script>\/\/<![CDATA[\r\nconsole.log(\"Hello 212a.\");\r\n\/\/]]>\r\n<\/script>\r\n <!-- rest of head --><\/code><\/pre>\n
Cause<\/h2>\n
This is caused by an interaction between Pagespeed<\/a> and Passenger. Pagespeed attempts to optimize inefficient\u00a0layouts by performing a litany of optimizations<\/a>, including inlining external requests that reside on the same domain if the embedded cost is less than the cost of making a subsequent HTTP request to fetch the asset.<\/p>\n
Solution<\/h2>\n
Disable Pagespeed (see KB: Disabling PageSpeed<\/a>) by locating the rule within the document root<\/a> for the site. Note that Passenger-backed apps do not recursively\u00a0inherit .htaccess rules as would be the case if the application were not managed by Passenger.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview Applications launched through Passenger, which includes Node, Python, Ruby, and Meteor, may receive\u00a0optimizations to JavaScript, CSS, and image assets which are not explicitly defined within application logic. Take for example a\u00a0small external JavaScript asset that may become\u00a0inlined after the first request: <head> <script src=”\/\/test.js””><\/script> <!– rest of head –>…<\/p>","protected":false},"author":1,"comment_status":"close","ping_status":"closed","template":"","format":"standard","meta":{"footnotes":""},"ht-kb-category":[55],"ht-kb-tag":[],"class_list":["post-8391","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-cgi-passenger"],"_links":{"self":[{"href":"https:\/\/kb.okra.host\/de\/wp-json\/wp\/v2\/ht-kb\/8391","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kb.okra.host\/de\/wp-json\/wp\/v2\/ht-kb"}],"about":[{"href":"https:\/\/kb.okra.host\/de\/wp-json\/wp\/v2\/types\/ht_kb"}],"author":[{"embeddable":true,"href":"https:\/\/kb.okra.host\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kb.okra.host\/de\/wp-json\/wp\/v2\/comments?post=8391"}],"version-history":[{"count":1,"href":"https:\/\/kb.okra.host\/de\/wp-json\/wp\/v2\/ht-kb\/8391\/revisions"}],"predecessor-version":[{"id":8392,"href":"https:\/\/kb.okra.host\/de\/wp-json\/wp\/v2\/ht-kb\/8391\/revisions\/8392"}],"wp:attachment":[{"href":"https:\/\/kb.okra.host\/de\/wp-json\/wp\/v2\/media?parent=8391"}],"wp:term":[{"taxonomy":"ht_kb_category","embeddable":true,"href":"https:\/\/kb.okra.host\/de\/wp-json\/wp\/v2\/ht-kb-category?post=8391"},{"taxonomy":"ht_kb_tag","embeddable":true,"href":"https:\/\/kb.okra.host\/de\/wp-json\/wp\/v2\/ht-kb-tag?post=8391"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}