Exception "Uncaught TypeError: Cannot read property 'textContent' of undefined" about brackets-code-folding HOT 5 CLOSED

I cannot reproduce the error with that file. I'm guessing it is being thrown from line 105?

from brackets-code-folding.

Yeah, my bad. I should provided you with a stack trace. Quick assumption, adding a gutter marker failed and then you try access it anyway.

Uncaught TypeError: Cannot read property 'textContent' of undefined main.js:105
_toggleLineMarker main.js:105
(anonymous function) main.js:126
_decorateGutters main.js:125
_handleScroll main.js:189
f.event.dispatch jquery-1.7.min.js:3
f.event.add.h.handle.i jquery-1.7.min.js:3
f.event.trigger jquery-1.7.min.js:3
f.fn.extend.triggerHandler jquery-1.7.min.js:3
Editor._installEditorListeners._codeMirror.on.self._focused Editor.js:655
signal codemirror.js:5093
(anonymous function)

from brackets-code-folding.

Quick debug and lInfo.gutterMarkers is undefined when the issue occurs... You might want to keep track of your markers yourself and reset them everytime a new document is opened

from brackets-code-folding.

Cool thanks.
Although I guess lInfo.gutterMarkers["code-folding-gutter"] must be undefined since there is a condition in the preceding line that checks that lInfo.gutterMarkers is defined (line 104)...?

from brackets-code-folding.

I am using a mousewheel and the issue seems to occur when scrolling kinda fast. If you scroll slow enough, the issue won't happen. So, I am thinking that you are trying to access gutter value before they are created by CodeMirror.

Yeah, you should keep track of you marker manually

from brackets-code-folding.