diff -r 536f22d6c2c5 -r 4f44f747f094 mercurial/hgweb/webcommands.py
--- a/mercurial/hgweb/webcommands.py	Sun Sep 23 16:15:48 2018 +0900
+++ b/mercurial/hgweb/webcommands.py	Sun Sep 23 16:11:01 2018 +0900
@@ -294,7 +294,7 @@
 
         for ctx in searchfunc[0](funcarg):
             count += 1
-            n = ctx.node()
+            n = scmutil.binnode(ctx)
             showtags = webutil.showtag(web.repo, 'changelogtag', n)
             files = webutil.listfilediffs(ctx.files(), n, web.maxfiles)
 
@@ -521,7 +521,7 @@
         symrev = 'tip'
     path = webutil.cleanpath(web.repo, web.req.qsparams.get('file', ''))
     mf = ctx.manifest()
-    node = ctx.node()
+    node = scmutil.binnode(ctx)
 
     files = {}
     dirs = {}
@@ -868,7 +868,7 @@
     leftrev = parent.rev()
     leftnode = parent.node()
     rightrev = ctx.rev()
-    rightnode = ctx.node()
+    rightnode = scmutil.binnode(ctx)
     if path in ctx:
         fctx = ctx[path]
         rightlines = filelines(fctx)