{"id":9440,"date":"2025-10-28T18:08:31","date_gmt":"2025-10-28T12:38:31","guid":{"rendered":"https:\/\/pheonixsolutions.com\/blog\/?p=9440"},"modified":"2025-10-28T18:09:15","modified_gmt":"2025-10-28T12:39:15","slug":"fixing-http-307-redirect-issue-in-reverse-proxy-setup","status":"publish","type":"post","link":"https:\/\/pheonixsolutions.com\/blog\/fixing-http-307-redirect-issue-in-reverse-proxy-setup\/","title":{"rendered":"Fixing HTTP 307 Redirect Issue in Reverse Proxy Setup"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\"><strong>1. Introduction<\/strong><\/h3>\n\n\n\n<p>When setting up a reverse proxy (for example, using Nginx) in front of a backend service like Argo CD or any HTTPS-only application, you might encounter the error:<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">HTTP\/1.1 307 Temporary Redirect\nLocation: https:\/\/&lt;backend-ip&gt;:&lt;port&gt;\/\n<\/pre>\n\n\n\n<p>This happens when the proxy forwards <strong>HTTP traffic<\/strong> to a <strong>backend that enforces HTTPS<\/strong>.<br>As a result, the backend keeps redirecting the request back to HTTPS, creating a continuous redirect loop.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. Prerequisites<\/strong><\/h3>\n\n\n\n<p>Before starting, make sure:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You have SSH or console access to your web server.<\/li>\n\n\n\n<li>Ports <strong>80<\/strong> and <strong>443<\/strong> are open and accessible.<\/li>\n\n\n\n<li>The backend service (e.g., Argo CD) is running and reachable from the proxy server.<\/li>\n\n\n\n<li>You can test connectivity using: <br>$ <code>curl -IL http:\/\/&lt;backend-ip&gt;:&lt;port&gt; # should show 307 redirect <\/code><br><code>$ curl -kIL https:\/\/&lt;backend-ip&gt;:&lt;port&gt;\/ # should return 200 OK<\/code><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. Steps to Resolve<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Identify the cause<\/strong><br>The proxy (Nginx) was using <code>http:\/\/<\/code> to communicate with a backend that only supports <code>https:\/\/<\/code>.<br>This mismatch triggers the 307 redirect.<\/li>\n\n\n\n<li><strong>Update the proxy configuration<\/strong><ul><li>Change the proxy URL from <code>http:\/\/&lt;backend-ip&gt;:&lt;port&gt;<\/code> \u2192 <code>https:\/\/&lt;backend-ip&gt;:&lt;port&gt;<\/code>.Ensure <code>proxy_ssl_verify off;<\/code> if the backend uses a self-signed certificate.                  Add forwarded headers such as:                                                                                                    <code>X-Forwarded-Proto: https                                                               X-Forwarded-For: $proxy_add_x_forwarded_for<\/code><\/li><\/ul>These tell the backend that the original client is already using HTTPS.<\/li>\n\n\n\n<li><strong>Reload the proxy service<\/strong> <br>$ <code>sudo nginx -t &amp;&amp; sudo systemctl reload nginx<\/code><\/li>\n\n\n\n<li><strong>Verify the fix<\/strong> <br>$ <code>curl -IL http:\/\/yourdomain.com # should return 301 \u2192 https <\/code><br>$ <code>curl -IL https:\/\/yourdomain.com # should return 200 OK<\/code> <br>The site should now open normally without looping redirects.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4. Conclusion<\/strong><\/h3>\n\n\n\n<p>The <strong>HTTP 307 Temporary Redirect<\/strong> is not an error\u2014it\u2019s a signal that the backend accepts only HTTPS connections.<br>The issue occurs when your proxy tries to communicate with the backend over plain HTTP.<br>By updating the proxy to use <strong>HTTPS<\/strong> for backend connections and aligning the protocols, the loop is resolved, and secure communication is established end-to-end.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. Introduction When setting up a reverse proxy (for example, using Nginx) in front of a backend service like Argo CD or any HTTPS-only application, you might encounter the error: This happens when the proxy forwards HTTP traffic to a backend that enforces HTTPS.As a result, the backend keeps redirecting&hellip; <a href=\"https:\/\/pheonixsolutions.com\/blog\/fixing-http-307-redirect-issue-in-reverse-proxy-setup\/\" class=\"more-link read-more\" rel=\"bookmark\">Continue Reading <span class=\"screen-reader-text\">Fixing HTTP 307 Redirect Issue in Reverse Proxy Setup<\/span><i class=\"fa fa-arrow-right\"><\/i><\/a><\/p>\n","protected":false},"author":508,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-9440","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-uncategorized","7":"h-entry","9":"h-as-article"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Pheonix Solutions - We Empower Your Business Growth<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pheonixsolutions.com\/blog\/fixing-http-307-redirect-issue-in-reverse-proxy-setup\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pheonix Solutions - We Empower Your Business Growth\" \/>\n<meta property=\"og:description\" content=\"1. Introduction When setting up a reverse proxy (for example, using Nginx) in front of a backend service like Argo CD or any HTTPS-only application, you might encounter the error: This happens when the proxy forwards HTTP traffic to a backend that enforces HTTPS.As a result, the backend keeps redirecting&hellip; Continue Reading Fixing HTTP 307 Redirect Issue in Reverse Proxy Setup\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pheonixsolutions.com\/blog\/fixing-http-307-redirect-issue-in-reverse-proxy-setup\/\" \/>\n<meta property=\"og:site_name\" content=\"PHEONIXSOLUTIONS\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/PheonixSolutions-209942982759387\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-10-28T12:38:31+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-28T12:39:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/pheonixsolutions.com\/blog\/wp-content\/uploads\/2016\/09\/PX2.png\" \/>\n\t<meta property=\"og:image:width\" content=\"3837\" \/>\n\t<meta property=\"og:image:height\" content=\"2540\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"srisanthosh S\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@pheonixsolution\" \/>\n<meta name=\"twitter:site\" content=\"@pheonixsolution\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"srisanthosh S\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/fixing-http-307-redirect-issue-in-reverse-proxy-setup\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/fixing-http-307-redirect-issue-in-reverse-proxy-setup\\\/\"},\"author\":{\"name\":\"srisanthosh S\",\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/#\\\/schema\\\/person\\\/09ea76d3244c951605c4850771aa1d97\"},\"headline\":\"Fixing HTTP 307 Redirect Issue in Reverse Proxy Setup\",\"datePublished\":\"2025-10-28T12:38:31+00:00\",\"dateModified\":\"2025-10-28T12:39:15+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/fixing-http-307-redirect-issue-in-reverse-proxy-setup\\\/\"},\"wordCount\":242,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/#organization\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/fixing-http-307-redirect-issue-in-reverse-proxy-setup\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/fixing-http-307-redirect-issue-in-reverse-proxy-setup\\\/\",\"url\":\"https:\\\/\\\/pheonixsolutions.com\\\/blog\\\/fixing-http-307-redirect-issue-in-reverse-proxy-setup\\\/\",\"name\":\"Pheonix Solutions - 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