Dom invalid character error

I'm trying to decode a base64 string for an image back into binary so it can be downloaded and displayed locally by an OS. The string I have successfully renders when put as the src of an HTML IMG

I’m trying to decode a base64 string for an image back into binary so it can be downloaded and displayed locally by an OS.

The string I have successfully renders when put as the src of an HTML IMG element with the data URI preface (data: img/png;base64, ) but when using the atob function or a goog closure function it fails.

However decoding succeeds when put in here: http://www.base64decode.org/

Any ideas?

EDIT:
I successfully got it to decode with another library other than the built-in JS function. But, it still won’t open locally — on a Mac says it’s damaged or in an unknown format and can’t get opened.

The code is just something like:

imgEl.src = 'data:img/png;base64,' + contentStr; //this displays successfully
decodedStr = window.atob(contentStr); //this throws the invalid char exception but i just
//used a different script to get it decode successfully but still won't display locally

the base64 string itself is too long to display here (limit is 30,000 characters)

Источник

When I was developing on http://web.twtxt.org I ran into this mysterious javascript error:

InvalidCharacterError: DOM Exception 5: An invalid or illegal character was specified, such as in an XML name.
atobbundle.js:245
(anonyme Funktion)bundle.js:245
emitbundle.js:1119
handlebundle.js:1673
onreadystatechangebundle.js:1465

The source code in question took a base64 encoded content of the github api and converted it with window.atob
into an utf8 string.

This worked well except for safari on iOS!

Thanks to Ross117 at SO I looked further at the base64 encoded string:

atob("MjAxNi0wMy0xOFQxOToxNzozOC4xMTNaCS9uaWNrIGRyYWNvYmx1ZQoyMDE2nLTAzLTE4VDE5OjE3OjM4LjExM1oJL3R3dHVybCBodHRwczovL2RyYWNvYmx1");
// error:  DOM Exception 5: An invalid or illegal character was specified, such as in an XML name.

As you can see there is a small n within the string. Chrome manages to ignore that, but Safari fails with this DOM Exception 5 error.

So this is my fix:

var input = "MjAxNi0wMy0xOFQxOToxNzozOC4xMTNaCS9uaWNrIGRyYWNvYmx1ZQoyMDE2nLTAzLTE4VDE5OjE3OjM4LjExM1oJL3R3dHVybCBodHRwczovL2RyYWNvYmx1";
var output = atob(input.replace(/s/g, ""));
// works!

to get rid of the whitespaces. I filled a support request at github, to ask if they can remove the additional n in their
api response, since it seems like it is not necessary at all.

Источник

org.w3c.dom
Class DOMException

java.lang.Object
  |
  +--java.lang.Throwable
        |
        +--java.lang.Exception
              |
              +--java.lang.RuntimeException
                    |
                    +--org.w3c.dom.DOMException
public class DOMException
extends java.lang.RuntimeException

DOM operations only raise exceptions in «exceptional» circumstances, i.e.,
when an operation is impossible to perform (either for logical reasons, because
data is lost, or because the implementation has become unstable). In general,
DOM methods return specific error values in ordinary processing situations,
such as out-of-bound errors when using NodeList.

Implementations should raise other exceptions under other circumstances. For
example, implementations should raise an implementation-dependent exception if
a null argument is passed.

Some languages and object systems do not support the concept of exceptions.
For such systems, error conditions may be indicated using native error
reporting mechanisms. For some bindings, for example, methods may return error
codes similar to those listed in the corresponding method descriptions.

See also the Document Object
Model (DOM) Level 2 Core Specification.

See Also:
Serialized
Form
Field Summary
 short code

           
static short DOMSTRING_SIZE_ERR

          If the specified
range of text does not fit into a DOMString
static short HIERARCHY_REQUEST_ERR

          If any node is
inserted somewhere it doesn’t belong
static short INDEX_SIZE_ERR

          If index or size is
negative, or greater than the allowed value
static short INUSE_ATTRIBUTE_ERR

          If an attempt is
made to add an attribute that is already in use elsewhere
static short INVALID_ACCESS_ERR

          If a parameter or
an operation is not supported by the underlying object.
static short INVALID_CHARACTER_ERR

          If an invalid or
illegal character is specified, such as in a name.
static short INVALID_MODIFICATION_ERR

          If an attempt is
made to modify the type of the underlying object.
static short INVALID_STATE_ERR

          If an attempt is
made to use an object that is not, or is no longer, usable.
static short NAMESPACE_ERR

          If an attempt is
made to create or change an object in a way which is incorrect with regard to
namespaces.
static short NO_DATA_ALLOWED_ERR

          If data is
specified for a node which does not support data
static short NO_MODIFICATION_ALLOWED_ERR

          If an attempt is
made to modify an object where modifications are not allowed
static short NOT_FOUND_ERR

          If an attempt is
made to reference a node in a context where it does not exist
static short NOT_SUPPORTED_ERR

          If the
implementation does not support the requested type of object or operation.
static short SYNTAX_ERR

          If an invalid or
illegal string is specified.
static short WRONG_DOCUMENT_ERR

          If a node is used
in a different document than the one that created it (that doesn’t support
it)

 

Constructor Summary

DOMException(short code,
java.lang.String message)
           

 

Methods inherited from class java.lang.Throwable
fillInStackTrace, getLocalizedMessage, getMessage, printStackTrace,
printStackTrace, printStackTrace, toString

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait,
wait, wait

 

code

public short code

INDEX_SIZE_ERR

public static final short INDEX_SIZE_ERR
If index or size is negative, or greater than the allowed value

DOMSTRING_SIZE_ERR

public static final short DOMSTRING_SIZE_ERR
If the specified range of text does not fit into a DOMString

HIERARCHY_REQUEST_ERR

public static final short HIERARCHY_REQUEST_ERR
If any node is inserted somewhere it doesn’t belong

WRONG_DOCUMENT_ERR

public static final short WRONG_DOCUMENT_ERR
If a node is used in a different document than the one that created it
(that doesn’t support it)

INVALID_CHARACTER_ERR

public static final short INVALID_CHARACTER_ERR
If an invalid or illegal character is specified, such as in a name. See
production 2 in the XML specification for the definition of a legal character,
and production 5 for the definition of a legal name character.

NO_DATA_ALLOWED_ERR

public static final short NO_DATA_ALLOWED_ERR
If data is specified for a node which does not support data

NO_MODIFICATION_ALLOWED_ERR

public static final short NO_MODIFICATION_ALLOWED_ERR
If an attempt is made to modify an object where modifications are not
allowed

NOT_FOUND_ERR

public static final short NOT_FOUND_ERR
If an attempt is made to reference a node in a context where it does not
exist

NOT_SUPPORTED_ERR

public static final short NOT_SUPPORTED_ERR
If the implementation does not support the requested type of object or
operation.

INUSE_ATTRIBUTE_ERR

public static final short INUSE_ATTRIBUTE_ERR
If an attempt is made to add an attribute that is already in use
elsewhere

INVALID_STATE_ERR

public static final short INVALID_STATE_ERR
If an attempt is made to use an object that is not, or is no longer,
usable.
Since:
DOM Level 2

SYNTAX_ERR

public static final short SYNTAX_ERR
If an invalid or illegal string is specified.
Since:
DOM Level 2

INVALID_MODIFICATION_ERR

public static final short INVALID_MODIFICATION_ERR
If an attempt is made to modify the type of the underlying object.
Since:
DOM Level 2

NAMESPACE_ERR

public static final short NAMESPACE_ERR
If an attempt is made to create or change an object in a way which is
incorrect with regard to namespaces.
Since:
DOM Level 2

INVALID_ACCESS_ERR

public static final short INVALID_ACCESS_ERR
If a parameter or an operation is not supported by the underlying
object.
Since:
DOM Level 2

DOMException

public DOMException(short code,
                    java.lang.String message)

Copyright
© 2000 W3C® (MIT, INRIA,
Keio), All Rights Reserved. W3C liability,
trademark,
document
useand software
licensing rules apply. Your interactions with this site are in accordance
with our public
and Member
privacy statements.

Источник

  • public interface DOMConstants

    String constants used by the DOM classes.

    • Field Summary

      Fields 

      Modifier and Type Field and Description
      static java.lang.String DOM_CANONICAL_FORM_PARAM 
      static java.lang.String DOM_CDATA_SECTIONS_PARAM 
      static java.lang.String DOM_CDATA_SECTIONS_SPLITTED_ERROR 
      static java.lang.String DOM_CHECK_CHARACTER_NORMALIZATION_PARAM 
      static java.lang.String DOM_COMMENTS_PARAM 
      static java.lang.String DOM_DATATYPE_NORMALIZATION_PARAM 
      static java.lang.String DOM_ELEMENT_CONTENT_WHITESPACE_PARAM 
      static java.lang.String DOM_ENTITIES_PARAM 
      static java.lang.String DOM_ERROR_HANDLER_PARAM 
      static java.lang.String DOM_INFOSET_PARAM 
      static java.lang.String DOM_INVALID_CHARACTER_ERROR 
      static java.lang.String DOM_INVALID_CHARACTER_IN_NODE_NAME_ERROR 
      static java.lang.String DOM_NAMESPACE_DECLARATIONS_PARAM 
      static java.lang.String DOM_NAMESPACES_PARAM 
      static java.lang.String DOM_NORMALIZE_CHARACTERS_PARAM 
      static java.lang.String DOM_SPLIT_CDATA_SECTIONS_PARAM 
      static java.lang.String DOM_VALIDATE_IF_SCHEMA_PARAM 
      static java.lang.String DOM_VALIDATE_PARAM 
      static java.lang.String DOM_WELL_FORMED_PARAM 

    • Field Detail

      • DOM_CANONICAL_FORM_PARAM

        static final java.lang.String DOM_CANONICAL_FORM_PARAM
        See Also:
        Constant Field Values

      • DOM_CDATA_SECTIONS_PARAM

        static final java.lang.String DOM_CDATA_SECTIONS_PARAM
        See Also:
        Constant Field Values

      • DOM_CHECK_CHARACTER_NORMALIZATION_PARAM

        static final java.lang.String DOM_CHECK_CHARACTER_NORMALIZATION_PARAM
        See Also:
        Constant Field Values

      • DOM_COMMENTS_PARAM

        static final java.lang.String DOM_COMMENTS_PARAM
        See Also:
        Constant Field Values

      • DOM_DATATYPE_NORMALIZATION_PARAM

        static final java.lang.String DOM_DATATYPE_NORMALIZATION_PARAM
        See Also:
        Constant Field Values

      • DOM_ELEMENT_CONTENT_WHITESPACE_PARAM

        static final java.lang.String DOM_ELEMENT_CONTENT_WHITESPACE_PARAM
        See Also:
        Constant Field Values

      • DOM_ENTITIES_PARAM

        static final java.lang.String DOM_ENTITIES_PARAM
        See Also:
        Constant Field Values

      • DOM_ERROR_HANDLER_PARAM

        static final java.lang.String DOM_ERROR_HANDLER_PARAM
        See Also:
        Constant Field Values

      • DOM_INFOSET_PARAM

        static final java.lang.String DOM_INFOSET_PARAM
        See Also:
        Constant Field Values

      • DOM_NAMESPACES_PARAM

        static final java.lang.String DOM_NAMESPACES_PARAM
        See Also:
        Constant Field Values

      • DOM_NAMESPACE_DECLARATIONS_PARAM

        static final java.lang.String DOM_NAMESPACE_DECLARATIONS_PARAM
        See Also:
        Constant Field Values

      • DOM_NORMALIZE_CHARACTERS_PARAM

        static final java.lang.String DOM_NORMALIZE_CHARACTERS_PARAM
        See Also:
        Constant Field Values

      • DOM_SPLIT_CDATA_SECTIONS_PARAM

        static final java.lang.String DOM_SPLIT_CDATA_SECTIONS_PARAM
        See Also:
        Constant Field Values

      • DOM_VALIDATE_PARAM

        static final java.lang.String DOM_VALIDATE_PARAM
        See Also:
        Constant Field Values

      • DOM_VALIDATE_IF_SCHEMA_PARAM

        static final java.lang.String DOM_VALIDATE_IF_SCHEMA_PARAM
        See Also:
        Constant Field Values

      • DOM_WELL_FORMED_PARAM

        static final java.lang.String DOM_WELL_FORMED_PARAM
        See Also:
        Constant Field Values

      • DOM_CDATA_SECTIONS_SPLITTED_ERROR

        static final java.lang.String DOM_CDATA_SECTIONS_SPLITTED_ERROR
        See Also:
        Constant Field Values

      • DOM_INVALID_CHARACTER_ERROR

        static final java.lang.String DOM_INVALID_CHARACTER_ERROR
        See Also:
        Constant Field Values

      • DOM_INVALID_CHARACTER_IN_NODE_NAME_ERROR

        static final java.lang.String DOM_INVALID_CHARACTER_IN_NODE_NAME_ERROR
        See Also:
        Constant Field Values
Источник
DOM_PHP_ERR
(integer) 0 Эта ошибка не является частью спецификации DOM. Предназначена для обработки ошибок PHP. DOM_INDEX_SIZE_ERR
(integer) 1 Если индекс отрицательный или выходит за пределы возможных значений. DOMSTRING_SIZE_ERR
(integer) 2 Если указанный фрагмент текста не помещается в
DOMString. DOM_HIERARCHY_REQUEST_ERR
(integer) 3 Если невозможно вставить узел DOM_WRONG_DOCUMENT_ERR
(integer) 4 Если узел используется в другом документе в котором был создан. DOM_INVALID_CHARACTER_ERR
(integer) 5 Если указан недопустимый символ в названии. DOM_NO_DATA_ALLOWED_ERR
(integer) 6 Если данные, указанные для узла, не поддерживаются. DOM_NO_MODIFICATION_ALLOWED_ERR
(integer) 7 Если происходит попытка изменить объект, который не поддерживает изменения. DOM_NOT_FOUND_ERR
(integer) 8 Если пытаться изменить контекст узла, которого не существует DOM_NOT_SUPPORTED_ERR
(integer) 9 Если не поддерживается требуемый тип объекта или операции. DOM_INUSE_ATTRIBUTE_ERR
(integer) 10 Если пытаться добавить атрибут, который используется в другом месте. DOM_INVALID_STATE_ERR
(integer) 11 Если пытаться использовать объект, которого нет или не возможно использовать. DOM_SYNTAX_ERR
(integer) 12 Используются недопустимые символы. DOM_INVALID_MODIFICATION_ERR
(integer) 13 Если пытаться изменить тип базовому объекту. DOM_NAMESPACE_ERR
(integer) 14 Если пытаться создать или изменить объект с некорректным пространством имён. DOM_INVALID_ACCESS_ERR
(integer) 15 Если параметр или операция не поддерживается базовым объектом. DOM_VALIDATION_ERR
(integer) 16 Если при вызове методов insertBefore или removeChild узел становиться недействительным,
то сработает это исключение и операция не будет выполнена.
Источник

The JavaScript exception «illegal character» occurs when there is an invalid or
unexpected token that doesn’t belong at this position in the code.

Message

SyntaxError: Invalid character (Edge)
SyntaxError: illegal character (Firefox)
SyntaxError: Invalid or unexpected token (Chrome)

Error type

What went wrong?

There is an invalid or unexpected token that doesn’t belong at this position in the
code. Use an editor that supports syntax highlighting and carefully check your code
against mismatches like a minus sign (-) versus a dash (–)
or simple quotes (") versus non-standard quotation marks (").

Examples

Mismatched characters

Some characters look similar, but will cause the parser to fail interpreting your code.
Famous examples of this are quotes, the minus or semicolon
(greek question mark (U+37e) looks same). 

“This looks like a string”; // SyntaxError: illegal character
// “ and ” are not " but look like it

42 – 13; // SyntaxError: illegal character
// – (en-dash) is not - but looks like it

const foo = "bar"; // SyntaxError: illegal character
// <37e> is not ; but looks like it

This should work:

"This is actually a string";
42 - 13;
const foo = "bar";

Some editors and IDEs will notify you or at least use a slightly different highlighting for it, but not all. When something like this happens to your code and you’re not able to find the source of the problem, it’s often best to just delete the problematic line and retype it.

Forgotten characters

It’s easy to forget a character here or there.

const colors = ["#000", #333", "#666"];
// SyntaxError: illegal character

Add the missing quote for "#333".

const colors = ["#000", "#333", "#666"];

Hidden characters

When copy pasting code from external sources, there might be invalid characters. Watch
out! 

const foo = "bar";​
// SyntaxError: illegal character

When inspecting this code in an editor like Vim, you can see that there is actually a
zero-width space (ZWSP) (U+200B) character. 

const foo = "bar";<200b>

See also

Источник

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