2 files changed, 19 insertions, 4 deletions
diff --git a/javascript/app/utils/api-urls.js b/javascript/app/utils/api-urls.js
index da8fdcb..d90c68a 100644
--- a/javascript/app/utils/api-urls.js
+++ b/javascript/app/utils/api-urls.js
@@ -1,5 +1,20 @@
 import config from '../config/environment';
 
+// "." and ".." is a special case because of the Path Segment Normalization:
+// https://tools.ietf.org/html/rfc3986#section-6.2.2.3
+// The segments “..” and “.” can be removed from a URL by a browser.
+// https://stackoverflow.com/questions/3856693/a-url-resource-that-is-a-dot-2e
+function fixDots(string) {
+  if(string === ".") {
+    return "%20%2E";
+  }
+  else if(string === "..")  {
+    return "%20%2E%2E";
+  } else {
+    return string.replace(/\./g, '%2E');
+  }
+}
+
 export const urls = {  
   packageInfoUrl : function(packageId) {
     return config.APP.staticUrlPrefix+"/"+packageId+"/"+config.APP.haskellCodeExplorerDirectory+"/packageInfo.json";
@@ -12,7 +27,7 @@ export const urls = {
   },
   packagesUrl : config.APP.apiUrlPrefix + "/packages",
   identifierDefinitionSiteUrl : function(packageId,moduleName,componentId,entity,name) {
-    return config.APP.apiUrlPrefix + "/definitionSite/" + packageId+"/"+componentId+"/"+moduleName+"/"+entity+"/"+encodeURIComponent(name).replace(/\./g, '%2E');
+    return config.APP.apiUrlPrefix + "/definitionSite/" + packageId+"/"+componentId+"/"+moduleName+"/"+entity+"/"+fixDots(encodeURIComponent(name));
   },
   modulePathUrl : function (packageId,moduleName,componentId) {
     return config.APP.apiUrlPrefix + "/modulePath/"+packageId+"/"+componentId+"/"+moduleName;
@@ -24,12 +39,12 @@ export const urls = {
     return config.APP.apiUrlPrefix + "/references/"+packageId+"/"+encodeURIComponent(externalId);
   },
   identifierSearchUrl : function (packageId,query) {
-    return config.APP.apiUrlPrefix + "/identifiers/"+packageId+"/"+encodeURIComponent(query).replace(/\./g, '%2E');
+    return config.APP.apiUrlPrefix + "/identifiers/"+packageId+"/"+fixDots(encodeURIComponent(query));
   },
   globalReferencesUrl : function (externalId) {
     return config.APP.apiUrlPrefix + "/globalReferences/"+encodeURIComponent(externalId);
   },
   globalIdentifiersUrl : function (query) {
-    return config.APP.apiUrlPrefix + "/globalIdentifiers/"+encodeURIComponent(query).replace(/\./g, '%2E');
+    return config.APP.apiUrlPrefix + "/globalIdentifiers/"+fixDots(encodeURIComponent(query));
   }
 }
diff --git a/javascript/app/utils/language-extensions.js b/javascript/app/utils/language-extensions.js
index f4f23bd..bee90b6 100644
--- a/javascript/app/utils/language-extensions.js
+++ b/javascript/app/utils/language-extensions.js
@@ -506,7 +506,7 @@ function addLinksToLanguageExtensionsDocs(string) {
       return match;
     }
   });
-};
+}
 
 export {
   addLinksToLanguageExtensionsDocs