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Asked: 2026-05-24T14:25:04+00:00

This is my first question… I hope my problem doesn’t look stupid… html (any

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This is my first question… I hope my problem doesn’t look stupid…

html (any symbols are allowed) —> javascript event —> javascript function sends text to .php file using ajax method.
Here is a problem:

when I use
xmlhttp.open(“GET”,”proceed.php?q=”+encodeURIComponent(str),false);
it works great for small texts (less than 1500 symbols)….

If I use
xmlhttp.open(“GET”,”proceed.php?q=”+str,false);
then it works for any length, but I have to be careful with special characters.

Why doesn’t encodeURIComponent work for a bigger amount of text (over ~1500 even just simple alphanumeric symbols)?
Any ideas?

So, the problem is in this string (I’ve tested all the rest).

BTW, it was tested on bulgarian cyrillic letters…

With a text over 1500 symbols there is no action at all (no viewable mistake, no nothing, just nothing happens).

Thank you.

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1 Answer

  1. Editorial Team

    There are a number of limits which you can hit with the length of a URL. In IE, the total length of the URL, including a GET query string, must not exceed 2,083 characters. The server might impose a limit, too.

    So apparently it’s not encodeURIComponent itself which has a problem with long strings. Rather, the encoded result is longer than the unencoded string, and that seems to be enough to make you hit one of the limits I mentioned above.

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