Don't modify uri's with a scheme prefix in Project.resolve

spec/app/project-spec.coffee

@@ -99,12 +99,17 @@ describe "Project", ->
         buffer = project.bufferForPath("a").retain().release()
         expect(project.bufferForPath("a").retain().release()).not.toBe buffer
 
-  describe ".resolve(path)", ->
-    it "returns an absolute path based on the project's root", ->
-      absolutePath = fsUtils.resolveOnLoadPath('fixtures/dir/a')
-      expect(project.resolve('a')).toBe absolutePath
-      expect(project.resolve(absolutePath + '/../a')).toBe absolutePath
-      expect(project.resolve('a/../a')).toBe absolutePath
+  describe ".resolve(uri)", ->
+    describe "when passed an absolute or relative path", ->
+      it "returns an absolute path based on the project's root", ->
+        absolutePath = fsUtils.resolveOnLoadPath('fixtures/dir/a')
+        expect(project.resolve('a')).toBe absolutePath
+        expect(project.resolve(absolutePath + '/../a')).toBe absolutePath
+        expect(project.resolve('a/../a')).toBe absolutePath
+
+    describe "when passed a uri with a scheme", ->
+      it "does not modify uris that begin with a scheme", ->
+        expect(project.resolve('http://zombo.com')).toBe 'http://zombo.com'
 
   describe ".relativize(path)", ->
     it "returns an relative path based on the project's root", ->

src/app/project.coffee

@@ -111,14 +111,18 @@ class Project
   ignoreRepositoryPath: (path) ->
     config.get("core.hideGitIgnoredFiles") and git?.isPathIgnored(fsUtils.join(@getPath(), path))
 
-  # Given a path, this resolves it relative to the project directory.
+  # Given a uri, this resolves it relative to the project directory. If the path
+  # is already absolute or if it is prefixed with a scheme, it is returned unchanged.
   #
-  # filePath - The {String} name of the path to convert
+  # uri - The {String} name of the path to convert
   #
   # Returns a {String}.
-  resolve: (filePath) ->
-    filePath = fsUtils.join(@getPath(), filePath) unless filePath[0] == '/'
-    fsUtils.absolute filePath
+  resolve: (uri) ->
+    if uri?.match(/[A-Za-z0-9+-.]+:\/\//) # leave path alone if it has a scheme
+      uri
+    else
+      uri = fsUtils.join(@getPath(), uri) unless uri[0] == '/'
+      fsUtils.absolute uri
 
   # Given a path, this makes it relative to the project directory.
   #