{"id":27490,"date":"2017-04-09T11:35:26","date_gmt":"2017-04-09T09:35:26","guid":{"rendered":"https:\/\/mamchenkov.net\/wordpress\/?p=27490"},"modified":"2017-04-09T11:35:26","modified_gmt":"2017-04-09T09:35:26","slug":"charles-web-debugging-proxy-application","status":"publish","type":"post","link":"https:\/\/mamchenkov.net\/wordpress\/2017\/04\/09\/charles-web-debugging-proxy-application\/","title":{"rendered":"Charles &#8211; web debugging proxy application"},"content":{"rendered":"<!-- google_ad_section_start -->\n<p><a href=\"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/charles-macosx.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"27491\" data-permalink=\"https:\/\/mamchenkov.net\/wordpress\/2017\/04\/09\/charles-web-debugging-proxy-application\/charles-macosx\/\" data-orig-file=\"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/charles-macosx.png?fit=550%2C426&amp;ssl=1\" data-orig-size=\"550,426\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"charles\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/charles-macosx.png?fit=550%2C426&amp;ssl=1\" class=\"aligncenter size-medium wp-image-27491\" src=\"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/charles-macosx-500x387.png?resize=500%2C387&#038;ssl=1\" alt=\"\" width=\"500\" height=\"387\" srcset=\"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/charles-macosx.png?resize=500%2C387&amp;ssl=1 500w, https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/charles-macosx.png?w=550&amp;ssl=1 550w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.charlesproxy.com\/\">Charles<\/a> is a web debugging proxy application for Windows, Mac OS, and Linux. \u00a0Here&#8217;s a quick description from the project&#8217;s website:<\/p>\n<blockquote><p>Charles is an HTTP proxy \/ HTTP monitor \/ Reverse Proxy that enables a developer to view all of the HTTP and SSL \/ HTTPS traffic between their machine and the Internet. This includes requests, responses and the HTTP headers (which contain the cookies and caching information).<\/p><\/blockquote>\n<p>And here are some <a href=\"https:\/\/www.charlesproxy.com\/overview\/about-charles\/\">key features<\/a>:<\/p>\n<blockquote>\n<ul>\n<li><a href=\"https:\/\/www.charlesproxy.com\/documentation\/proxying\/ssl-proxying\/\">SSL Proxying<\/a> \u2013 view SSL requests and responses in plain text<\/li>\n<li><a href=\"https:\/\/www.charlesproxy.com\/documentation\/proxying\/throttling\/\">Bandwidth Throttling<\/a> to simulate slower Internet connections including latency<\/li>\n<li>AJAX debugging \u2013 view XML and JSON requests and responses as a tree or as text<\/li>\n<li><a href=\"https:\/\/www.charlesproxy.com\/documentation\/additional\/amf\/\">AMF<\/a> \u2013 view the contents of Flash Remoting \/ Flex Remoting messages as a tree<\/li>\n<li>Repeat requests to test back-end changes<\/li>\n<li>Edit requests to test different inputs<\/li>\n<li>Breakpoints to intercept and edit requests or responses<\/li>\n<li>Validate recorded HTML, CSS and RSS\/atom responses using the W3C validator<\/li>\n<\/ul>\n<\/blockquote>\n<p>Pretty much every browser these days comes with developer tools (like <a href=\"https:\/\/developer.chrome.com\/devtools\">Google Chrome<\/a>, for example).<\/p>\n<p><a href=\"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/network-panel.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"27492\" data-permalink=\"https:\/\/mamchenkov.net\/wordpress\/2017\/04\/09\/charles-web-debugging-proxy-application\/network-panel\/\" data-orig-file=\"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/network-panel.png?fit=1157%2C483&amp;ssl=1\" data-orig-size=\"1157,483\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"network-panel\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/network-panel.png?fit=660%2C275&amp;ssl=1\" class=\"aligncenter size-medium wp-image-27492\" src=\"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/network-panel-500x209.png?resize=500%2C209&#038;ssl=1\" alt=\"\" width=\"500\" height=\"209\" srcset=\"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/network-panel.png?resize=500%2C209&amp;ssl=1 500w, https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/network-panel.png?resize=768%2C321&amp;ssl=1 768w, https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/network-panel.png?resize=1024%2C427&amp;ssl=1 1024w, https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/network-panel.png?w=1157&amp;ssl=1 1157w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/p>\n<p>But these are mostly useful for requests made by the browser itself. \u00a0Often, like depicted in &#8220;<a href=\"https:\/\/deliciousbrains.com\/php-curl-how-wordpress-makes-http-requests\/\">PHP and cURL: How WordPress makes HTTP requests<\/a>&#8221; blog post from which I learned about Charles, one needs to examine requests made by the application itself &#8211; like WordPress in this particular case.<\/p>\n<p>The developer tools of the browser won&#8217;t be very useful, but a proxy application like Charles would. \u00a0Setting up a proxy will send all requests through it, allowing for easy inspection and debugging.<\/p>\n<!-- google_ad_section_end -->\n","protected":false},"excerpt":{"rendered":"<!-- google_ad_section_start -->\n<p>Charles is a web debugging proxy application for Windows, Mac OS, and Linux. \u00a0Here&#8217;s a quick description from the project&#8217;s website: Charles is an HTTP proxy \/ HTTP monitor \/ Reverse Proxy that enables a developer to view all of the HTTP and SSL \/ HTTPS traffic between their machine and the Internet. This includes &hellip; <a href=\"https:\/\/mamchenkov.net\/wordpress\/2017\/04\/09\/charles-web-debugging-proxy-application\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Charles &#8211; web debugging proxy application<\/span><\/a><\/p>\n<!-- google_ad_section_end -->\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Charles - web debugging proxy application #WebDev #PHP #cURL #WordPress #HTTP","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false,"_links_to":"","_links_to_target":""},"categories":[1,18,62,1334,60],"tags":[3505,3225,38,1330,1905],"keyring_services":[],"class_list":["post-27490","post","type-post","status-publish","format-standard","hentry","category-general","category-programming","category-technology","category-web-work","category-wordpress","tag-curl","tag-http","tag-php","tag-web-development","tag-wordpress-internals"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.8 - aioseo.com -->\n\t<meta name=\"description\" content=\"Charles is a web debugging proxy application for Windows, Mac OS, and Linux. 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