diff --git a/httpfs.js b/httpfs.js
index b6070c1..e73c5bf 100755
--- a/httpfs.js
+++ b/httpfs.js
@@ -11,7 +11,7 @@ program
     .option('--attrcache')
     .option('--cache')
     .option('--blocksize <bytes>')
-    .option('--nocache <regex>')
+    .option('--nocache <pattern>')
     .option('--certraw <certificate>')
     .option('--certfile <certificate-filename>')
     .option('--debuglog <debug-log-filename>')
@@ -25,6 +25,9 @@ program
         if (options.blocksize) {
             options.blocksize = filesizeParser(options.blocksize)
         }
+        if (options.nocache) {
+            options.nocache = options.nocache.split(',')
+        }
         httpfs.mount(endpoint, mountpoint, options, (err, mount) => {
             if (err) {
                 if (err) throw err
diff --git a/lib.js b/lib.js
index 82c57ec..73146ed 100755
--- a/lib.js
+++ b/lib.js
@@ -1,5 +1,6 @@
 const fs = require('fs')
 const url = require('url')
+const matcher = require('matcher')
 const fuse = require('fuse-bindings')
 const Agent = require('agentkeepalive')
 const BufferSerializer = require('buffer-serializer')
@@ -13,11 +14,6 @@ exports.mount = function(endpoint, mountpoint, options, callback) {
     let blocksize = options.blocksize || 1024 * 1024
     let timeout = options.timeout || 60 * 60
 
-    let nocache
-    if (options.nocache) {
-        nocache = new RegExp(options.nocache)
-    }
-
     let attrcache
     if (options.attrcache) {
         attrcache = {}
@@ -166,7 +162,19 @@ exports.mount = function(endpoint, mountpoint, options, callback) {
     }
     
     function shouldCache(p) {
-        return cache && !(nocache && nocache.test(p))
+        if (cache) {
+            if (options.nocache) {
+                for (let pattern of options.nocache) {
+                    if (matcher.isMatch(p, pattern)) {
+                        logDebug('no caching', options.nocache, p)
+                        return false
+                    }
+                }
+            }
+            return true
+        } else {
+            return false
+        }
     }
     
     function createDescriptor(p) {
@@ -367,7 +375,7 @@ exports.mount = function(endpoint, mountpoint, options, callback) {
         rmdir:    (p, cb)               => logAndPerformI('rmdir',    cb, p)
     }, err => {
         if (err) {
-            console.error('problem mounting', endpoint.href, 'to', mountpoint)
+            console.error('problem mounting', endpoint.href, 'to', mountpoint, err)
             callback(err)
         } else {
             log('mounted', endpoint.href, 'to', mountpoint)
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..9a63afe
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,612 @@
+{
+  "name": "httpfs",
+  "version": "0.0.1",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "agentkeepalive": {
+      "version": "3.5.1",
+      "resolved": "https://registry.npmjs.org/agentkeepalive/-/agentkeepalive-3.5.1.tgz",
+      "integrity": "sha512-Cte/sTY9/XcygXjJ0q58v//SnEQ7ViWExKyJpLJlLqomDbQyMLh6Is4KuWJ/wmxzhiwkGRple7Gqv1zf6Syz5w==",
+      "requires": {
+        "humanize-ms": "1.2.1"
+      }
+    },
+    "ansi-regex": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8="
+    },
+    "ansi-styles": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.2.1.tgz",
+      "integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4="
+    },
+    "asn1": {
+      "version": "0.2.3",
+      "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.4.tgz",
+      "integrity": "sha512-jxwzQpLQjSmWXgwaCZE9Nz+glAG01yF1QnWgbhGwHI5A6FRIEY6IVqtHhIepHqI7/kyEyQEagBC5mBEFlIYvdg=="
+    },
+    "async": {
+      "version": "0.9.2",
+      "resolved": "http://registry.npmjs.org/async/-/async-0.9.2.tgz",
+      "integrity": "sha1-rqdNXmHB+JlhO/ZL2mbUx48v0X0="
+    },
+    "aws-sign2": {
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.6.0.tgz",
+      "integrity": "sha1-FDQt0428yU0OW4fXY81jYSwOeU8="
+    },
+    "aws4": {
+      "version": "1.7.0",
+      "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.8.0.tgz",
+      "integrity": "sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ=="
+    },
+    "bcrypt-pbkdf": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz",
+      "integrity": "sha1-pDAdOJtqQ/m2f/PKEaP2Y342Dp4=",
+      "optional": true,
+      "requires": {
+        "tweetnacl": "0.14.5"
+      }
+    },
+    "bl": {
+      "version": "1.1.2",
+      "resolved": "http://registry.npmjs.org/bl/-/bl-1.1.2.tgz",
+      "integrity": "sha1-/cqHGplxOqANGeO7ukHER4emU5g=",
+      "requires": {
+        "readable-stream": "2.0.6"
+      }
+    },
+    "boom": {
+      "version": "2.10.1",
+      "resolved": "https://registry.npmjs.org/boom/-/boom-2.10.1.tgz",
+      "integrity": "sha1-OciRjO/1eZ+D+UkqhI9iWt0Mdm8=",
+      "requires": {
+        "hoek": "2.16.3"
+      }
+    },
+    "buffer-serializer": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/buffer-serializer/-/buffer-serializer-1.1.0.tgz",
+      "integrity": "sha1-dgPEj97I3lPtPcAwMrmGuHoAFCQ="
+    },
+    "caseless": {
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+      "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.11.0.tgz",
+      "integrity": "sha1-cVuW6phBWTzDMGeSP17GDr2k99c="
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+      "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
+      "requires": {
+        "ansi-styles": "2.2.1",
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+        "has-ansi": "2.0.0",
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+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.16.0.tgz",
+      "integrity": "sha512-sVXqklSaotK9at437sFlFpyOcJonxe0yST/AG9DkQKUdIE6IqGIMv4SfAQSKaJbSdVEJYItASCrBiVQHq1HQew=="
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+      "integrity": "sha1-O9/s3GCBR8HGcgL6KR59ylnqo7g=",
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+      "integrity": "sha1-hTz6D3y+L+1d4gMmuN1YEDX24vA=",
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+}
diff --git a/package.json b/package.json
index 93a88e3..9dc94ca 100644
--- a/package.json
+++ b/package.json
@@ -15,6 +15,7 @@
     "commander": "^2.16.0",
     "filesize-parser": "^1.5.0",
     "fuse-bindings": "^2.11.2",
+    "matcher": "^1.1.1",
     "unirest": "^0.5.1"
   }
 }