I opened the last Sigil Plugin Framework guide
(just downloaded from here), and on getting to the 2nd section, the display began to jump up and down. Reloading the book solved the issue for some 30 seconds, and on the 3rd try I got the following error message:
Code:
calibre, version 4.2.0
ERROR: Unhandled error: Uncaught IndexSizeError: Failed to execute 'setStart' on 'Range':
The offset 23 is larger than the node's length (22).<br><span style="font-size:smaller">Error at
userscript:viewer.js:13635:23</span>
Traceback (most recent call last):
at fn (userscript:viewer.js:13635:23)
Error: Failed to execute 'setStart' on 'Range': The offset 23 is larger than the node's length (22).
Please, somebody knows what can be happening?
Thanks!