Merge pull request #1259 from GitbookIO/png-data-uri

Adding data-uri support for PNG Images in Books

1 files changed, 12 insertions, 2 deletions

diff --git a/lib/utils/location.js b/lib/utils/location.js
index 84a71ad..1afe415 100644
--- a/lib/utils/location.js
+++ b/lib/utils/location.js
@@ -4,7 +4,16 @@ var path = require('path');
 // Is the url an external url
 function isExternal(href) {
     try {
-        return Boolean(url.parse(href).protocol);
+        return Boolean(url.parse(href).protocol) && !isDataURI(href);
+    } catch(err) {
+        return false;
+    }
+}
+
+// Is the url an iniline data-uri
+function isDataURI(href) {
+    try {
+        return Boolean(url.parse(href).protocol) && (url.parse(href).protocol === 'data:');
     } catch(err) {
         return false;
     }
@@ -39,7 +48,7 @@ function normalize(s) {
     @return {String}
 */
 function toAbsolute(_href, dir, outdir) {
-    if (isExternal(_href)) return _href;
+    if (isExternal(_href) || isDataURI(_href)) return _href;
     outdir = outdir == undefined? dir : outdir;
 
     _href = normalize(_href);
@@ -97,6 +106,7 @@ function areIdenticalPaths(p1, p2) {
 
 module.exports = {
     areIdenticalPaths: areIdenticalPaths,
+    isDataURI: isDataURI,
     isExternal: isExternal,
     isRelative: isRelative,
     isAnchor: isAnchor,