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Internet Explorer ‘SCRIPT1002: Syntax error’: Help!?!

by Max Rohde,

Problem

A script that otherwise is interpreted by other major browsers (Chrome/ Firefox) without problems, prompts Internet Explorer to issue an error along the lines of:

SCRIPT1002: Syntax error
edit-snapshot, line 2230 character 1

Analysis

I think this error can broadly be interpreted as: there is some seriously illegal markup in your script (according to IE's definition)

Solution

The script error will usually (unhelpfully) point to the end of the script definition, the <script> tag. Essentially, the best strategy I could come up with, to sift through your script and search for anything unusual. For instance:

  • Does your JavaScript define new '<script><script>' elements by using the exact string '<script>'
  • Does your JavaScript markup resembling HTML/XML style comments, such as `'

Resources

JAVASCRIPT WITHIN AJAX FAILS TO LOAD IN IE - ERROR 80020101

Categories: javascript
tag. Essentially, the best strategy I could come up with, to sift through your script and search for anything unusual. For instance:\n\n- Does your JavaScript define new '' elements by using the exact string '