{"id":3203,"date":"2021-04-15T15:35:27","date_gmt":"2021-04-15T14:35:27","guid":{"rendered":"https:\/\/kudzia.eu\/b\/?p=3203"},"modified":"2021-04-15T17:45:32","modified_gmt":"2021-04-15T16:45:32","slug":"fiddler-returning-http-1-1-502-fiddler-connection-failed-for-https-requests-replied-made-with-it","status":"publish","type":"post","link":"https:\/\/kudzia.eu\/b\/2021\/04\/fiddler-returning-http-1-1-502-fiddler-connection-failed-for-https-requests-replied-made-with-it\/","title":{"rendered":"fiddler returning &#8220;HTTP\/1.1 502 Fiddler &#8211; Connection Failed&#8221; for HTTPs requests replied \/ made with it?"},"content":{"rendered":"<p>i&#8217;ve been using fiddler tool for ages. recently i&#8217;ve noticed most of my attempts of sending new requests fail with:<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\r\nHTTP\/1.1 502 Fiddler - Connection Failed\r\nDate: Thu, 15 Apr 2021 14:21:59 GMT\r\nContent-Type: text\/html; charset=UTF-8\r\nConnection: close\r\nCache-Control: no-cache, must-revalidate\r\nTimestamp: 16:21:59.795\r\n\r\n&#x5B;Fiddler] The connection to 'whatever.com' failed.  &lt;br \/&gt;System.Security.SecurityException Failed to negotiate HTTPS connection with server.fiddler.network.https&amp;gt; HTTPS handshake to whatever.com (for #7750) failed. System.Security.Authentication.AuthenticationException A call to SSPI failed, see inner exception. &amp;lt; The function requested is not supported\r\n\r\nWin32 (SChannel) Native Error Code: 0x80090302                                                                        \r\n<\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kudzia.eu\/b\/wp-content\/uploads\/2021\/04\/fiddler-fail.png\" alt=\"\" width=\"700\" height=\"506\" class=\"alignnone size-full wp-image-3209\" srcset=\"https:\/\/kudzia.eu\/b\/wp-content\/uploads\/2021\/04\/fiddler-fail.png 700w, https:\/\/kudzia.eu\/b\/wp-content\/uploads\/2021\/04\/fiddler-fail-300x217.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/p>\n<p>solution? <\/p>\n<p>tools > options > [x] capture HTTPS CONNECTs > [x] Decrypt HTTPS traffic > protocols: enter there tls1.2<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kudzia.eu\/b\/wp-content\/uploads\/2021\/04\/fiddler-solution.png\" alt=\"\" width=\"542\" height=\"368\" class=\"alignnone size-full wp-image-3205\" srcset=\"https:\/\/kudzia.eu\/b\/wp-content\/uploads\/2021\/04\/fiddler-solution.png 542w, https:\/\/kudzia.eu\/b\/wp-content\/uploads\/2021\/04\/fiddler-solution-300x204.png 300w\" sizes=\"auto, (max-width: 542px) 100vw, 542px\" \/><\/p>\n<p>once it&#8217;s set you can un-tick [x] capture.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>i&#8217;ve been using fiddler tool for ages. recently i&#8217;ve noticed most of my attempts of sending new requests fail with: HTTP\/1.1 502 Fiddler &#8211; Connection Failed Date: Thu, 15 Apr 2021 14:21:59 GMT Content-Type: text\/html; charset=UTF-8 Connection: close Cache-Control: no-cache, must-revalidate Timestamp: 16:21:59.795 &#x5B;Fiddler] The connection to &#8216;whatever.com&#8217; failed. &lt;br \/&gt;System.Security.SecurityException Failed to negotiate HTTPS [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[51],"tags":[],"class_list":["post-3203","post","type-post","status-publish","format-standard","hentry","category-unimportant"],"_links":{"self":[{"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/posts\/3203","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/comments?post=3203"}],"version-history":[{"count":3,"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/posts\/3203\/revisions"}],"predecessor-version":[{"id":3210,"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/posts\/3203\/revisions\/3210"}],"wp:attachment":[{"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/media?parent=3203"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/categories?post=3203"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kudzia.eu\/b\/wp-json\/wp\/v2\/tags?post=3203"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}