diff --git a/lib/polyfill.coffee b/lib/polyfill.coffee
index cba68a122..0ad7c1fe8 100644
--- a/lib/polyfill.coffee
+++ b/lib/polyfill.coffee
@@ -22,7 +22,7 @@ Polyfill =
       # DataUrl to Binary code from Aeosynth's 4chan X repo
       l = data.length
       ui8a = new Uint8Array l
-      for i in  [0...l]
+      for i in [0...l] by 1
         ui8a[i] = data.charCodeAt i
       cb new Blob [ui8a], type: 'image/png'
   visibility: ->
diff --git a/src/General/Main.coffee b/src/General/Main.coffee
index eee9be9ae..afcdbe910 100644
--- a/src/General/Main.coffee
+++ b/src/General/Main.coffee
@@ -220,7 +220,7 @@ Main =
     len = nodes.length
     for callback in klass::callbacks
       # c.profile callback.name
-      for i in [0...len]
+      for i in [0...len] by 1
         node = nodes[i]
         try
           callback.cb.call node
diff --git a/src/General/Post.coffee b/src/General/Post.coffee
index 7319235fd..c792efa81 100644
--- a/src/General/Post.coffee
+++ b/src/General/Post.coffee
@@ -73,7 +73,7 @@ class Post
     text = []
     # XPathResult.ORDERED_NODE_SNAPSHOT_TYPE === 7
     nodes = d.evaluate './/br|.//text()', bq, null, 7, null
-    for i in [0...nodes.snapshotLength]
+    for i in [0...nodes.snapshotLength] by 1
       text.push nodes.snapshotItem(i).data or '\n'
     @info.comment = text.join('').trim().replace /\s+$/gm, ''
 
diff --git a/src/Miscellaneous/IDColor.coffee b/src/Miscellaneous/IDColor.coffee
index e3ae50715..def9ee3c7 100644
--- a/src/Miscellaneous/IDColor.coffee
+++ b/src/Miscellaneous/IDColor.coffee
@@ -35,6 +35,6 @@ IDColor =
 
   hash: (uniqueID) ->
     msg = 0
-    for i in [0...uniqueID.length]
+    for i in [0...uniqueID.length] by 1
       msg = (msg << 5) - msg + uniqueID.charCodeAt i
     msg