ajv: IE 11 Failure to compile schema during makeValidate initialization

What version of Ajv are you using? Does the issue happen if you use the latest version?

Began with 5.3.0, then updated to the latest version, 6.0.1. The issue persists.

Ajv options object

{
  allErrors: true,
  jsonPointers: true,
  schemas: [schemas.token.post, schemas.definitions],
}

JSON Schema

schemas/token/post.json

{
  "$id": "token.post.json",
  "$async": true,
  "type": "object",
  "properties": {
    "identifier": {
      "type": "string"
    },
    "password": {
      "type": "string"
    },
    "asCookie": {
      "type": "boolean"
    },
    "isPersistent": {
      "type": "boolean"
    },
    "expiresIn": {
      "type": "number",
      "max": 720
    },
    "registrationToken": {
      "type": "string"
    }
  },
  "additionalProperties": false,
  "oneOf": [
    {"required": ["identifier", "password"]},
    {"required": ["registrationToken"]}
  ],
  "errorMessage": {
    "oneOf": "An identifier and password are required or a registration token is required."
  }
}

schemas/definitions.json

{
  "$id": "definitions.json",
  "$async": true,
  "definitions": {
    "username": {
      "type": "string",
      "minLength": 2,
      "maxLength": 80,
      "errorMessage": {
        "minLength": "Your username must be at least 2 characters long.",
        "maxLength": "You username must be at most 80 characters long."
      }
    },
    "email": {
      "type": "string",
      "format": "email"
    },
    "password": {
      "type": "string",
      "minLength": 8,
      "maxLength": 100
    }
  }
}

Sample data Your code Validation result, data AFTER validation, error messages What results did you expect?

This does not appear to be a validation issue. Instead, it might be with how IE is evaluating the sourceCode generated in ajv/lib/compile/index.js

Description

In the desktop versions of Chrome, Firefox, Safari, and Edge, my app loads just fine. In Internet Explorer, however, the following errors are reported in the console:

Error compiling schema, function code: var customRule0 = ... SCRIPT1004: Expected ':' index.js(148, 1)

NOTE: For ajv@5.3.0, Expected '(' rather than ; is reported.

I placed a breakpoint at line 148, reloaded, and copied the value stored in sourceCode:

That value is:

"var customRule0 = customRules[0]; var validate = async function(data, dataPath, parentData, parentDataProperty, rootData) { 'use strict';  var vErrors = null;  var errors = 0;        if ((data && typeof data === \"object\" && !Array.isArray(data))) {   var errs__0 = errors;var valid1 = true; for (var key0 in data) {  var isAdditional0 = !(false  || validate.schema.properties[key0]  ); if (isAdditional0) {  valid1 = false;  var err =  { keyword: 'additionalProperties' , dataPath: (dataPath || '') + \"\" , schemaPath: '#/additionalProperties' , params: { additionalProperty: '' + key0 + '' }  , message: 'should NOT have additional properties'  } ;  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++;  }  }   if (data.identifier !== undefined  ) {   var errs_1 = errors; if (typeof data.identifier !== \"string\") {  var err =  { keyword: 'type' , dataPath: (dataPath || '') + '/identifier' , schemaPath: '#/properties/identifier/type' , params: { type: 'string' }  , message: 'should be string'  } ;  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++;  }  var valid1 = errors === errs_1; }  if (data.password !== undefined  ) {   var errs_1 = errors; if (typeof data.password !== \"string\") {  var err =  { keyword: 'type' , dataPath: (dataPath || '') + '/password' , schemaPath: '#/properties/password/type' , params: { type: 'string' }  , message: 'should be string'  } ;  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++;  }  var valid1 = errors === errs_1; }  if (data.asCookie !== undefined  ) {   var errs_1 = errors; if (typeof data.asCookie !== \"boolean\") {  var err =  { keyword: 'type' , dataPath: (dataPath || '') + '/asCookie' , schemaPath: '#/properties/asCookie/type' , params: { type: 'boolean' }  , message: 'should be boolean'  } ;  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++;  }  var valid1 = errors === errs_1; }  if (data.isPersistent !== undefined  ) {   var errs_1 = errors; if (typeof data.isPersistent !== \"boolean\") {  var err =  { keyword: 'type' , dataPath: (dataPath || '') + '/isPersistent' , schemaPath: '#/properties/isPersistent/type' , params: { type: 'boolean' }  , message: 'should be boolean'  } ;  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++;  }  var valid1 = errors === errs_1; }  if (data.expiresIn !== undefined  ) {   var errs_1 = errors; if (typeof data.expiresIn !== \"number\") {  var err =  { keyword: 'type' , dataPath: (dataPath || '') + '/expiresIn' , schemaPath: '#/properties/expiresIn/type' , params: { type: 'number' }  , message: 'should be number'  } ;  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++;  }  var valid1 = errors === errs_1; }  if (data.registrationToken !== undefined  ) {   var errs_1 = errors; if (typeof data.registrationToken !== \"string\") {  var err =  { keyword: 'type' , dataPath: (dataPath || '') + '/registrationToken' , schemaPath: '#/properties/registrationToken/type' , params: { type: 'string' }  , message: 'should be string'  } ;  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++;  }  var valid1 = errors === errs_1; }   }  else {  var err =  { keyword: 'type' , dataPath: (dataPath || '') + \"\" , schemaPath: '#/type' , params: { type: 'object' }  , message: 'should be object'  } ;  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++;  }   var errs__0 = errors , prevValid0 = false , valid0 = false , passingSchemas0 = null;    var errs_1 = errors; if ((data && typeof data === \"object\" && !Array.isArray(data))) {    if ( data.identifier === undefined ) {  var err =    { keyword: 'required' , dataPath: (dataPath || '') + \"\" , schemaPath: '#/oneOf/0/required' , params: { missingProperty: 'identifier' }  , message: 'should have required property \\'identifier\\''  } ;  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; }  if ( data.password === undefined ) {  var err =    { keyword: 'required' , dataPath: (dataPath || '') + \"\" , schemaPath: '#/oneOf/0/required' , params: { missingProperty: 'password' }  , message: 'should have required property \\'password\\''  } ;  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; }   }  var valid1 = errors === errs_1;  if (valid1) { valid0 = prevValid0 = true; passingSchemas0 = 0; }   var errs_1 = errors; if ((data && typeof data === \"object\" && !Array.isArray(data))) {    if ( data.registrationToken === undefined ) {  var err =    { keyword: 'required' , dataPath: (dataPath || '') + \"\" , schemaPath: '#/oneOf/1/required' , params: { missingProperty: 'registrationToken' }  , message: 'should have required property \\'registrationToken\\''  } ;  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; }   }  var valid1 = errors === errs_1;  if (valid1 && prevValid0) { valid0 = false; passingSchemas0 = [passingSchemas0, 1]; } else {  if (valid1) { valid0 = prevValid0 = true; passingSchemas0 = 1; }}if (!valid0) {   var err =    { keyword: 'oneOf' , dataPath: (dataPath || '') + \"\" , schemaPath: '#/oneOf' , params: { passingSchemas: passingSchemas0 }  , message: 'should match exactly one schema in oneOf'  } ;  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; } else {  errors = errs__0; if (vErrors !== null) { if (errs__0) vErrors.length = errs__0; else vErrors = null; } }    var errs__0 = errors;var valid0;   if (errors > 0) { var _em_dataPath0 = (dataPath || '') + \"\"; var _em_i0, _em_err0, _em_errors0;  _em_i0 = 0; _em_errors0 = {\"oneOf\":[]};  var _em_templates0 = {  }; while (_em_i0 < errors) { _em_err0 = vErrors[_em_i0]; if (  _em_err0.keyword != 'errorMessage'  && _em_err0.keyword in _em_errors0 && _em_err0.dataPath == _em_dataPath0 && _em_err0.schemaPath.indexOf('#') == 0 && /^\\/[^\\/]*$/.test(_em_err0.schemaPath.slice(1))) { _em_errors0[_em_err0.keyword].push(_em_err0);   vErrors.splice(_em_i0, 1); errors--;  } else { _em_i0++; } }  for (var _em_key0 in _em_errors0) { if (_em_errors0[_em_key0].length) {  var _em_message0 =   _em_key0 in _em_templates0 ? _em_templates0[_em_key0] () : validate.schema.errorMessage[_em_key0]; var _em_paramsErrors0 = _em_errors0[_em_key0];   var err = { keyword: 'errorMessage' , dataPath: _em_dataPath0 , schemaPath: '#' + '/errorMessage' , params: { errors: _em_paramsErrors0 } , message: _em_message0  };  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++;  } }  }   if (errors === 0) return data;            else throw new ValidationError(vErrors);  }; return validate;"

Sure enough, attempting to eval this value or construct a Function with it results in the same Expected ';' error. I pasted the results of console.loging the value in http://jshint.com/ but no Missing semicolon error was reported.

Are you going to resolve the issue? I would love to, if I knew how. It might have to do with how escapes are interpreted by IE.