diff --git a/backend/routes/clickTtHttpPageRoutes.js b/backend/routes/clickTtHttpPageRoutes.js
index da46269e..3fc0649d 100644
--- a/backend/routes/clickTtHttpPageRoutes.js
+++ b/backend/routes/clickTtHttpPageRoutes.js
@@ -317,8 +317,14 @@ function injectProxyNavigationScript(html, proxyBaseUrl, pageBaseUrl, sid) {
     'if(action)return normalizeUrl(action,PAGE_BASE_URL);',
     "return normalizeUrl((form&&form.getAttribute?form.getAttribute('action'):null)||PAGE_BASE_URL,PAGE_BASE_URL);",
     '}',
+    'var lastSubmitter=null;',
     "document.addEventListener('click',function(event){",
     "var anchor=event.target&&event.target.closest?event.target.closest('a[href]'):null;",
+    "var submitControl=event.target&&event.target.closest?event.target.closest('button, input[type=\"submit\"], input[type=\"image\"]'):null;",
+    'if(submitControl){',
+    'lastSubmitter=submitControl;',
+    "try{console.log('[ClickTT Proxy] submit control click',{name:submitControl.name||null,value:submitControl.value||null,type:submitControl.type||submitControl.tagName,formAction:submitControl.getAttribute?submitControl.getAttribute('formaction'):null,text:(submitControl.textContent||'').trim().slice(0,120)});}catch(e){}",
+    '}',
     'if(!anchor||event.defaultPrevented)return;',
     "var targetUrl=normalizeUrl(anchor.getAttribute('href'),PAGE_BASE_URL);",
     'if(!targetUrl||!shouldProxyUrl(targetUrl))return;',
@@ -329,9 +335,20 @@ function injectProxyNavigationScript(html, proxyBaseUrl, pageBaseUrl, sid) {
     "document.addEventListener('submit',function(event){",
     'var form=event.target;',
     "if(!form||!form.tagName||form.tagName.toLowerCase()!=='form')return;",
-    'var submitter=event.submitter||null;',
+    'var submitter=event.submitter||lastSubmitter||null;',
     'var targetUrl=getSubmitTarget(form,submitter);',
     'if(!targetUrl||!shouldProxyUrl(targetUrl))return;',
+    'if(submitter&&submitter.form===form&&submitter.name){',
+    "var hasField=!!form.querySelector('[name=\"'+CSS.escape(submitter.name)+'\"]');",
+    'if(!hasField){',
+    "var hidden=document.createElement('input');",
+    "hidden.type='hidden';",
+    'hidden.name=submitter.name;',
+    "hidden.value=submitter.value||'';",
+    "hidden.setAttribute('data-clicktt-submit-proxy','1');",
+    'form.appendChild(hidden);',
+    '}',
+    '}',
     'try{',
     'var formDataEntries=[];',
     'if(window.FormData){',
@@ -367,8 +384,20 @@ function injectProxyNavigationScript(html, proxyBaseUrl, pageBaseUrl, sid) {
     'if(window.HTMLFormElement&&window.HTMLFormElement.prototype&&window.HTMLFormElement.prototype.submit){',
     'var nativeSubmit=window.HTMLFormElement.prototype.submit;',
     'window.HTMLFormElement.prototype.submit=function patchedSubmit(){',
-    'var targetUrl=getSubmitTarget(this,null);',
-    'try{console.log("[ClickTT Proxy] direct form.submit()",{action:this.getAttribute("action"),targetUrl:targetUrl});}catch(e){}',
+    'var submitter=lastSubmitter&&lastSubmitter.form===this?lastSubmitter:null;',
+    'var targetUrl=getSubmitTarget(this,submitter);',
+    'if(submitter&&submitter.name){',
+    "var hasField=!!this.querySelector('[name=\"'+CSS.escape(submitter.name)+'\"]');",
+    'if(!hasField){',
+    "var hidden=document.createElement('input');",
+    "hidden.type='hidden';",
+    'hidden.name=submitter.name;',
+    "hidden.value=submitter.value||'';",
+    "hidden.setAttribute('data-clicktt-submit-proxy','1');",
+    'this.appendChild(hidden);',
+    '}',
+    '}',
+    'try{console.log("[ClickTT Proxy] direct form.submit()",{action:this.getAttribute("action"),targetUrl:targetUrl,submitterName:submitter&&submitter.name?submitter.name:null,submitterValue:submitter&&submitter.value?submitter.value:null});}catch(e){}',
     "if(targetUrl&&shouldProxyUrl(targetUrl)){this.setAttribute('action',buildProxyUrl(targetUrl));}",
     'return nativeSubmit.apply(this,arguments);',
     '};',