Limited number of characters in online forms

[JohnPower]

Hi there,

my setup: Macbook Pro early 2008 with El Capitan.
My problem: When I start writing an answer in online forums, suddenly the form blocks further input. Sometimes it blocks after two sentences, sometimes after ten, it varies.
I then have to type my answer in Word and have to copy/paste it into the browser form. Very annoying.

Is this a known bug in El Capitan, is there a solution?

 

[jbarley]

I wouldn't think it is an El Capitan issue or we would have heard about it long ago.
Does it occur for you in this (MacRumors) forum?

 

[JohnPower]

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[doublepost=1518958092][/doublepost]yes, this is as far as I can write, even this second answer I had to copy paste from notes