diff --git a/devtools/server/actors/errordocs.js b/devtools/server/actors/errordocs.js
index 9c6fc0ada0e7..4fcc38a1a0ec 100644
--- a/devtools/server/actors/errordocs.js
+++ b/devtools/server/actors/errordocs.js
@@ -9,15 +9,51 @@
 
 "use strict";
 
+const baseURL = "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/";
+
 const ErrorDocs = {
-  JSMSG_READ_ONLY: "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Read-only",
-  JSMSG_BAD_ARRAY_LENGTH: "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Invalid_array_length",
-  JSMSG_NEGATIVE_REPETITION_COUNT: "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Negative_repetition_count",
-  JSMSG_RESULTING_STRING_TOO_LARGE: "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Resulting_string_too_large",
-  JSMSG_BAD_RADIX: "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Bad_radix",
-  JSMSG_PRECISION_RANGE: "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Precision_range",
-  JSMSG_BAD_FORMAL: "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Malformed_formal_parameter",
-  JSMSG_STMT_AFTER_RETURN: "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Stmt_after_return",
+  JSMSG_READ_ONLY: "Read-only",
+  JSMSG_BAD_ARRAY_LENGTH: "Invalid_array_length",
+  JSMSG_NEGATIVE_REPETITION_COUNT: "Negative_repetition_count",
+  JSMSG_RESULTING_STRING_TOO_LARGE: "Resulting_string_too_large",
+  JSMSG_BAD_RADIX: "Bad_radix",
+  JSMSG_PRECISION_RANGE: "Precision_range",
+  JSMSG_BAD_FORMAL: "Malformed_formal_parameter",
+  JSMSG_STMT_AFTER_RETURN: "Stmt_after_return",
+  JSMSG_NOT_A_CODEPOINT: "Not_a_codepoint",
+  JSMSG_BAD_SORT_ARG: "Array_sort_argument",
+  JSMSG_UNEXPECTED_TYPE: "Unexpected_type",
+  JSMSG_NOT_DEFINED: "Not_defined",
+  JSMSG_NOT_FUNCTION: "Not_a_function",
+  JSMSG_EQUAL_AS_ASSIGN: "Equal_as_assign",
+  JSMSG_UNDEFINED_PROP: "Undefined_prop",
+  JSMSG_DEPRECATED_PRAGMA: "Deprecated_source_map_pragma",
+  JSMSG_DEPRECATED_USAGE: "Deprecated_caller_or_arguments_usage",
+  JSMSG_CANT_DELETE: "Cant_delete",
+  JSMSG_VAR_HIDES_ARG: "Var_hides_argument",
+  JSMSG_JSON_BAD_PARSE: "JSON_bad_parse",
+  JSMSG_UNDECLARED_VAR: "Undeclared_var",
+  JSMSG_UNEXPECTED_TOKEN: "Unexpected_token",
+  JSMSG_BAD_OCTAL: "Bad_octal",
+  JSMSG_PROPERTY_ACCESS_DENIED: "Property_access_denied",
+  JSMSG_NO_PROPERTIES: "No_properties",
+  JSMSG_ALREADY_HAS_PRAGMA: "Already_has_pragma",
+  JSMSG_BAD_RETURN_OR_YIELD: "Bad_return_or_yield",
+  JSMSG_SEMI_BEFORE_STMNT: "Missing_semicolon_before_statement",
+  JSMSG_OVER_RECURSED: "Too_much_recursion",
+  JSMSG_BRACKET_AFTER_LIST: "Missing_bracket_after_list",
+  JSMSG_PAREN_AFTER_ARGS: "Missing_parenthesis_after_argument_list",
+  JSMSG_MORE_ARGS_NEEDED: "More_arguments_needed",
+  JSMSG_BAD_LEFTSIDE_OF_ASS: "Invalid_assignment_left-hand_side",
+  JSMSG_UNTERMINATED_STRING: "Unterminated_string_literal",
+  JSMSG_NOT_CONSTRUCTOR: "Not_a_constructor",
+  JSMSG_CURLY_AFTER_LIST: "Missing_curly_after_property_list",
 };
 
-exports.GetURL = (errorName) => ErrorDocs[errorName];
+exports.GetURL = (errorName) => {
+  let doc = ErrorDocs[errorName];
+  if (doc) {
+    return baseURL + doc;
+  }
+  return undefined;
+}