diff -r 7c82bfd55d47 -r 1c97df5e3b46 mercurial/hgweb/webcommands.py
--- a/mercurial/hgweb/webcommands.py	Wed Jun 21 17:07:51 2017 +0200
+++ b/mercurial/hgweb/webcommands.py	Wed Jun 21 17:17:17 2017 +0200
@@ -865,6 +865,7 @@
     fctx = webutil.filectx(web.repo, req)
     f = fctx.path()
     parity = paritygen(web.stripecount)
+    ishead = fctx.filerev() in fctx.filelog().headrevs()
 
     # parents() is called once per line and several lines likely belong to
     # same revision. So it is worth caching.
@@ -927,6 +928,7 @@
                 symrev=webutil.symrevorshortnode(req, fctx),
                 rename=webutil.renamelink(fctx),
                 permissions=fctx.manifest().flags(f),
+                ishead=int(ishead),
                 **webutil.commonentry(web.repo, fctx))
 
 @webcommand('filelog')