diff --git a/lib/read.js b/lib/read.js
index fce6283f50961e68c2f576031ed5e3d4fdc39984..6131c31fb8ba8d413e0a3bf887ebd87f1c3a4007 100644
--- a/lib/read.js
+++ b/lib/read.js
@@ -18,7 +18,7 @@ var iconv = require('iconv-lite')
 var onFinished = require('on-finished')
 var unpipe = require('unpipe')
 var zlib = require('zlib')
-
+var Stream = require('stream')
 /**
  * Module exports.
  */
@@ -166,25 +166,25 @@ function contentstream (req, debug, inflate) {
     case 'deflate':
       stream = zlib.createInflate()
       debug('inflate body')
-      req.pipe(stream)
+      // req.pipe(stream)
       break
     case 'gzip':
       stream = zlib.createGunzip()
       debug('gunzip body')
-      req.pipe(stream)
+      // req.pipe(stream)
       break
     case 'identity':
       stream = req
       stream.length = length
-      break
+      return req
     default:
       throw createError(415, 'unsupported content encoding "' + encoding + '"', {
         encoding: encoding,
         type: 'encoding.unsupported'
       })
   }
-
-  return stream
+  var pass = new Stream.PassThrough(); Stream.pipeline(req, stream, pass, () => {})
+  return pass
 }
 
 /**
diff --git a/lib/types/json.js b/lib/types/json.js
index 59f3f7e28f2416cac957b5e35dc78839a5019e0d..f23e52eca828a726f12e915f8ea52698d3761d68 100644
--- a/lib/types/json.js
+++ b/lib/types/json.js
@@ -17,6 +17,8 @@ var contentType = require('content-type')
 var createError = require('http-errors')
 var debug = require('debug')('body-parser:json')
 var read = require('../read')
+var LOCKDOWN_INSTALLED = Symbol.for('overleaf.lockdown.installed')
+var LOCKDOWN_RAW_BODY = Symbol.for('overleaf.lockdown.rawBody')
 var typeis = require('type-is')
 
 /**
@@ -105,7 +107,7 @@ function json (options) {
       return
     }
 
-    req.body = req.body || {}
+    req.body = (req[LOCKDOWN_INSTALLED] ? req[LOCKDOWN_RAW_BODY] : req.body) || {}
 
     // skip requests without bodies
     if (!typeis.hasBody(req)) {
diff --git a/lib/types/raw.js b/lib/types/raw.js
index f5d1b67475405284e3dac312f92ade101571329f..251780a624b09340b8a821974565fa330f9792b7 100644
--- a/lib/types/raw.js
+++ b/lib/types/raw.js
@@ -13,6 +13,8 @@
 var bytes = require('bytes')
 var debug = require('debug')('body-parser:raw')
 var read = require('../read')
+var LOCKDOWN_INSTALLED = Symbol.for('overleaf.lockdown.installed')
+var LOCKDOWN_RAW_BODY = Symbol.for('overleaf.lockdown.rawBody')
 var typeis = require('type-is')
 
 /**
@@ -59,7 +61,7 @@ function raw (options) {
       return
     }
 
-    req.body = req.body || {}
+    req.body = (req[LOCKDOWN_INSTALLED] ? req[LOCKDOWN_RAW_BODY] : req.body) || {}
 
     // skip requests without bodies
     if (!typeis.hasBody(req)) {
diff --git a/lib/types/text.js b/lib/types/text.js
index 083a00908a6299a8ef72f477983359f5675f82ef..4ea3ee88191bf02ecedf6c975d20144d4d7f2f47 100644
--- a/lib/types/text.js
+++ b/lib/types/text.js
@@ -14,6 +14,8 @@ var bytes = require('bytes')
 var contentType = require('content-type')
 var debug = require('debug')('body-parser:text')
 var read = require('../read')
+var LOCKDOWN_INSTALLED = Symbol.for('overleaf.lockdown.installed')
+var LOCKDOWN_RAW_BODY = Symbol.for('overleaf.lockdown.rawBody')
 var typeis = require('type-is')
 
 /**
@@ -61,7 +63,7 @@ function text (options) {
       return
     }
 
-    req.body = req.body || {}
+    req.body = (req[LOCKDOWN_INSTALLED] ? req[LOCKDOWN_RAW_BODY] : req.body) || {}
 
     // skip requests without bodies
     if (!typeis.hasBody(req)) {
diff --git a/lib/types/urlencoded.js b/lib/types/urlencoded.js
index 832992c2c3e0324c9bcb612a01f2fe2fb3e19414..4da13852cd5a89c97d8d7be2b81ba8fd62551f9e 100644
--- a/lib/types/urlencoded.js
+++ b/lib/types/urlencoded.js
@@ -18,6 +18,8 @@ var createError = require('http-errors')
 var debug = require('debug')('body-parser:urlencoded')
 var deprecate = require('depd')('body-parser')
 var read = require('../read')
+var LOCKDOWN_INSTALLED = Symbol.for('overleaf.lockdown.installed')
+var LOCKDOWN_RAW_BODY = Symbol.for('overleaf.lockdown.rawBody')
 var typeis = require('type-is')
 
 /**
@@ -83,7 +85,7 @@ function urlencoded (options) {
       return
     }
 
-    req.body = req.body || {}
+    req.body = (req[LOCKDOWN_INSTALLED] ? req[LOCKDOWN_RAW_BODY] : req.body) || {}
 
     // skip requests without bodies
     if (!typeis.hasBody(req)) {