From f4620a8c69a71a4e99ed4e51346ec630f7c3aee2 Mon Sep 17 00:00:00 2001
From: r <r@freesoftwareextremist.com>
Date: Sun, 17 Jan 2021 05:44:07 +0000
Subject: Make redirection work without Referer header

---
 renderer/model.go           |  1 +
 service/service.go          | 11 +++++++----
 service/transport.go        | 48 ++++++++++++++++++++++++---------------------
 templates/nav.tmpl          |  1 +
 templates/notification.tmpl |  3 +++
 templates/postform.tmpl     |  1 +
 templates/requestlist.tmpl  |  2 ++
 templates/settings.tmpl     |  1 +
 templates/status.tmpl       |  8 ++++++++
 templates/user.tmpl         | 11 +++++++++++
 10 files changed, 61 insertions(+), 26 deletions(-)

diff --git a/renderer/model.go b/renderer/model.go
index 1dcb404..a89b379 100644
--- a/renderer/model.go
+++ b/renderer/model.go
@@ -14,6 +14,7 @@ type Context struct {
 	CSRFToken        string
 	UserID           string
 	AntiDopamineMode bool
+	Referrer         string
 }
 
 type NavData struct {
diff --git a/service/service.go b/service/service.go
index 088bcf4..01306d0 100644
--- a/service/service.go
+++ b/service/service.go
@@ -58,9 +58,11 @@ func NewService(clientName string,
 func getRendererContext(c *client) *renderer.Context {
 	var settings model.Settings
 	var session model.Session
+	var referrer string
 	if c != nil {
 		settings = c.Session.Settings
 		session = c.Session
+		referrer = c.url()
 	} else {
 		settings = *model.NewSettings()
 	}
@@ -73,6 +75,7 @@ func getRendererContext(c *client) *renderer.Context {
 		CSRFToken:        session.CSRFToken,
 		UserID:           session.UserID,
 		AntiDopamineMode: settings.AntiDopamineMode,
+		Referrer:         referrer,
 	}
 }
 
@@ -545,7 +548,7 @@ func (s *service) UserSearchPage(c *client,
 
 	if len(results.Statuses) == 20 {
 		offset += 20
-		nextLink = fmt.Sprintf("/usersearch/%s?q=%s&offset=%d", id, 
+		nextLink = fmt.Sprintf("/usersearch/%s?q=%s&offset=%d", id,
 			url.QueryEscape(q), offset)
 	}
 
@@ -608,7 +611,7 @@ func (s *service) SearchPage(c *client,
 	if (qType == "accounts" && len(results.Accounts) == 20) ||
 		(qType == "statuses" && len(results.Statuses) == 20) {
 		offset += 20
-		nextLink = fmt.Sprintf("/search?q=%s&type=%s&offset=%d", 
+		nextLink = fmt.Sprintf("/search?q=%s&type=%s&offset=%d",
 			url.QueryEscape(q), qType, offset)
 	}
 
@@ -721,7 +724,7 @@ func (s *service) NewSession(instance string) (rurl string, sid string, err erro
 	return
 }
 
-func (s *service) Signin(c *client, code string) (token string, 
+func (s *service) Signin(c *client, code string) (token string,
 	userID string, err error) {
 
 	if len(code) < 1 {
@@ -747,7 +750,7 @@ func (s *service) Signout(c *client) (err error) {
 	return
 }
 
-func (s *service) Post(c *client, content string, replyToID string, 
+func (s *service) Post(c *client, content string, replyToID string,
 	format string, visibility string, isNSFW bool,
 	files []*multipart.FileHeader) (id string, err error) {
 
diff --git a/service/transport.go b/service/transport.go
index 7ba52a4..882a351 100644
--- a/service/transport.go
+++ b/service/transport.go
@@ -46,6 +46,10 @@ type client struct {
 	Session   model.Session
 }
 
+func (c *client) url() string {
+	return c.Req.URL.RequestURI()
+}
+
 func setSessionCookie(w http.ResponseWriter, sid string, exp time.Duration) {
 	http.SetCookie(w, &http.Cookie{
 		Name:    "session_id",
@@ -301,7 +305,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 			return err
 		}
 
-		location := c.Req.Header.Get("Referer")
+		location := c.Req.FormValue("referrer")
 		if len(replyToID) > 0 {
 			location = "/thread/" + replyToID + "#status-" + id
 		}
@@ -319,7 +323,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if len(rid) > 0 {
 			id = rid
 		}
-		redirect(c, c.Req.Header.Get("Referer")+"#status-"+id)
+		redirect(c, c.Req.FormValue("referrer")+"#status-"+id)
 		return nil
 	}, CSRF, HTML)
 
@@ -333,7 +337,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if len(rid) > 0 {
 			id = rid
 		}
-		redirect(c, c.Req.Header.Get("Referer")+"#status-"+id)
+		redirect(c, c.Req.FormValue("referrer")+"#status-"+id)
 		return nil
 	}, CSRF, HTML)
 
@@ -347,7 +351,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if len(rid) > 0 {
 			id = rid
 		}
-		redirect(c, c.Req.Header.Get("Referer")+"#status-"+id)
+		redirect(c, c.Req.FormValue("referrer")+"#status-"+id)
 		return nil
 	}, CSRF, HTML)
 
@@ -361,7 +365,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if len(rid) > 0 {
 			id = rid
 		}
-		redirect(c, c.Req.Header.Get("Referer")+"#status-"+id)
+		redirect(c, c.Req.FormValue("referrer")+"#status-"+id)
 		return nil
 	}, CSRF, HTML)
 
@@ -373,7 +377,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer")+"#status-"+statusID)
+		redirect(c, c.Req.FormValue("referrer")+"#status-"+statusID)
 		return nil
 	}, CSRF, HTML)
 
@@ -389,7 +393,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -399,7 +403,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -409,7 +413,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -419,7 +423,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -429,7 +433,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -439,7 +443,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -449,7 +453,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -459,7 +463,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -469,7 +473,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -479,7 +483,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -522,7 +526,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -532,7 +536,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -542,7 +546,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -553,7 +557,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if err != nil {
 			return err
 		}
-		redirect(c, c.Req.Header.Get("Referer"))
+		redirect(c, c.Req.FormValue("referrer"))
 		return nil
 	}, CSRF, HTML)
 
@@ -567,7 +571,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if len(rid) > 0 {
 			id = rid
 		}
-		redirect(c, c.Req.Header.Get("Referer")+"#status-"+id)
+		redirect(c, c.Req.FormValue("referrer")+"#status-"+id)
 		return nil
 	}, CSRF, HTML)
 
@@ -581,7 +585,7 @@ func NewHandler(s *service, logger *log.Logger, staticDir string) http.Handler {
 		if len(rid) > 0 {
 			id = rid
 		}
-		redirect(c, c.Req.Header.Get("Referer")+"#status-"+id)
+		redirect(c, c.Req.FormValue("referrer")+"#status-"+id)
 		return nil
 	}, CSRF, HTML)
 
diff --git a/templates/nav.tmpl b/templates/nav.tmpl
index 97898c8..fdff885 100644
--- a/templates/nav.tmpl
+++ b/templates/nav.tmpl
@@ -25,6 +25,7 @@
 			<a class="nav-link" href="/settings" target="_top" accesskey="7" title="Settings (7)">settings</a>
 			<form class="signout" action="/signout" method="post" target="_top">
 				<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+				<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 				<input type="submit" value="signout" class="btn-link nav-link" accesskey="8" title="Signout (8)">
 			</form>
 		</div>
diff --git a/templates/notification.tmpl b/templates/notification.tmpl
index 567bcf0..4eed61b 100644
--- a/templates/notification.tmpl
+++ b/templates/notification.tmpl
@@ -11,6 +11,7 @@
 	{{if .ReadID}}
 	<form class="notification-read" action="/notifications/read?max_id={{.ReadID}}" method="post" target="_self">
 		<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+		<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 		<input type="submit" value="read" class="btn-link" accesskey="C" title="Clear unread notifications (C)">
 	</form>
 	{{end}}
@@ -57,11 +58,13 @@
 			</div>
 			<form class="d-inline" action="/accept/{{.Account.ID}}" method="post" target="_self">
 				<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+				<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 				<input type="submit" value="accept" class="btn-link">
 			</form>
 			-
 			<form class="d-inline" action="/reject/{{.Account.ID}}" method="post" target="_self">
 				<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+				<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 				<input type="submit" value="reject" class="btn-link">
 			</form>
 		</div>
diff --git a/templates/postform.tmpl b/templates/postform.tmpl
index f00c300..b81126c 100644
--- a/templates/postform.tmpl
+++ b/templates/postform.tmpl
@@ -1,6 +1,7 @@
 {{with .Data}}
 <form class="post-form" action="/post" method="POST" enctype="multipart/form-data" target="_self">
 	<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+	<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 	{{if .ReplyContext}}
 	<input type="hidden" name="reply_to_id" value="{{.ReplyContext.InReplyToID}}" />
 	<label for="post-content" class="post-form-title"> Reply to {{.ReplyContext.InReplyToName}} </label>
diff --git a/templates/requestlist.tmpl b/templates/requestlist.tmpl
index 232b56d..eec75f2 100644
--- a/templates/requestlist.tmpl
+++ b/templates/requestlist.tmpl
@@ -16,11 +16,13 @@
 			</div>
 			<form class="d-inline" action="/accept/{{.ID}}" method="post" target="_self">
 				<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+				<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 				<input type="submit" value="accept" class="btn-link">
 			</form>
 			-
 			<form class="d-inline" action="/reject/{{.ID}}" method="post" target="_self">
 				<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+				<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 				<input type="submit" value="reject" class="btn-link">
 			</form>
 		</div>
diff --git a/templates/settings.tmpl b/templates/settings.tmpl
index baeb64d..4a72b6a 100644
--- a/templates/settings.tmpl
+++ b/templates/settings.tmpl
@@ -4,6 +4,7 @@
 
 <form id="settings-form" action="/settings" method="POST">
 	<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+	<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 	<div class="settings-form-field">
 		<label for="visibility"> Default format </label>
 		{{$defFormat := .Settings.DefaultFormat}}
diff --git a/templates/status.tmpl b/templates/status.tmpl
index a46129f..a1e2d9f 100644
--- a/templates/status.tmpl
+++ b/templates/status.tmpl
@@ -38,23 +38,27 @@
 						{{if .Muted}}
 						<form action="/unmuteconv/{{.ID}}" method="post" target="_self">
 							<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+							<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 							<input type="submit" value="unmute" class="btn-link more-link">
 						</form>
 						{{else}}
 						<form action="/muteconv/{{.ID}}" method="post" target="_self">
 							<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+							<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 							<input type="submit" value="mute" class="btn-link more-link">
 						</form>
 						{{end}}
 						{{if .Bookmarked}}
 						<form action="/unbookmark/{{.ID}}" method="post" target="_self">
 							<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+							<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 							<input type="hidden" name="retweeted_by_id" value="{{.RetweetedByID}}">
 							<input type="submit" value="unbookmark" class="btn-link more-link">
 						</form>
 						{{else}}
 						<form action="/bookmark/{{.ID}}" method="post" target="_self">
 							<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+							<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 							<input type="hidden" name="retweeted_by_id" value="{{.RetweetedByID}}">
 							<input type="submit" value="bookmark" class="btn-link more-link">
 						</form>
@@ -62,6 +66,7 @@
 						{{if eq $.Ctx.UserID .Account.ID}}
 						<form action="/delete/{{.ID}}" method="post" target="_self">
 							<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+							<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 							<input type="submit" value="delete" class="btn-link more-link">
 						</form>
 						{{end}}
@@ -143,6 +148,7 @@
 			{{if .Poll}}
 			<form class="poll-form" action="/vote/{{.Poll.ID}}" method="POST" target="_self">
 				<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+				<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 				<input type="hidden" name="status_id" value="{{$s.ID}}">
 				{{range $i, $o := .Poll.Options}}
 				<div class="poll-option">
@@ -195,6 +201,7 @@
 					{{$rt := "retweet"}} {{if .Reblogged}} {{$rt = "unretweet"}} {{end}}
 					<form class="status-retweet" data-action="{{$rt}}" action="/{{$rt}}/{{.ID}}" method="post" target="_self">
 						<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+						<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 						<input type="hidden" name="retweeted_by_id" value="{{.RetweetedByID}}">
 						<input type="submit" value="{{$rt}}" class="btn-link">
 						<a class="status-retweet-count" href="/retweetedby/{{.ID}}" title="click to see the the list"> 
@@ -209,6 +216,7 @@
 					{{$like := "like"}} {{if .Favourited}} {{$like = "unlike"}} {{end}}
 					<form class="status-like" data-action="{{$like}}" action="/{{$like}}/{{.ID}}" method="post" target="_self">
 						<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+						<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 						<input type="hidden" name="retweeted_by_id" value="{{.RetweetedByID}}">
 						<input type="submit" value="{{$like}}" class="btn-link">
 						<a class="status-like-count" href="/likedby/{{.ID}}" title="click to see the the list"> 
diff --git a/templates/user.tmpl b/templates/user.tmpl
index 5ef411a..af6a8d1 100644
--- a/templates/user.tmpl
+++ b/templates/user.tmpl
@@ -23,11 +23,13 @@
 			{{if .User.Pleroma.Relationship.Following}} 
 			<form class="d-inline" action="/unfollow/{{.User.ID}}" method="post">
 				<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+				<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 				<input type="submit" value="unfollow" class="btn-link">
 			</form>
 			{{else}}
 			<form class="d-inline" action="/follow/{{.User.ID}}" method="post">
 				<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+				<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 				<input type="submit" value="{{if .User.Pleroma.Relationship.Requested}}resend request{{else}}follow{{end}}" class="btn-link">
 			</form>
 			{{end}}
@@ -35,6 +37,7 @@
 			-
 			<form class="d-inline" action="/unfollow/{{.User.ID}}" method="post">
 				<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+				<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 				<input type="submit" value="cancel request" class="btn-link">
 			</form>
 			{{end}}
@@ -42,11 +45,13 @@
 			{{if .User.Pleroma.Relationship.Subscribing}}
 			<form class="d-inline" action="/unsubscribe/{{.User.ID}}" method="post">
 				<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+				<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 				<input type="submit" value="unsubscribe" class="btn-link">
 			</form>
 			{{else}}
 			<form class="d-inline" action="/subscribe/{{.User.ID}}" method="post">
 				<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+				<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 				<input type="submit" value="subscribe" class="btn-link">
 			</form>
 			{{end}}
@@ -55,11 +60,13 @@
 			{{if .User.Pleroma.Relationship.Blocking}}
 			<form class="d-inline" action="/unblock/{{.User.ID}}" method="post">
 				<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+				<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 				<input type="submit" value="unblock" class="btn-link">
 			</form>
 			{{else}}
 			<form class="d-inline" action="/block/{{.User.ID}}" method="post">
 				<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+				<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 				<input type="submit" value="block" class="btn-link">
 			</form>
 			{{end}}
@@ -67,11 +74,13 @@
 			{{if .User.Pleroma.Relationship.Muting}}
 			<form class="d-inline" action="/unmute/{{.User.ID}}" method="post">
 				<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+				<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 				<input type="submit" value="unmute" class="btn-link">
 			</form>
 			{{else}}
 			<form class="d-inline" action="/mute/{{.User.ID}}" method="post">
 				<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+				<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 				<input type="submit" value="mute" class="btn-link">
 			</form>
 			{{end}}
@@ -80,11 +89,13 @@
 			{{if .User.Pleroma.Relationship.ShowingReblogs}}
 			<form class="d-inline" action="/follow/{{.User.ID}}?reblogs=false" method="post">
 				<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+				<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 				<input type="submit" value="hide retweets" class="btn-link">
 			</form>
 			{{else}}
 			<form class="d-inline" action="/follow/{{.User.ID}}" method="post">
 				<input type="hidden" name="csrf_token" value="{{$.Ctx.CSRFToken}}">
+				<input type="hidden" name="referrer" value="{{$.Ctx.Referrer}}">
 				<input type="submit" value="show retweets" class="btn-link">
 			</form>
 			{{end}}
-- 
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