Description:

Occasionally you'll reload and you'll just get a white screen. Some times it'll take several reloads before it loads the page.

Boils down to this:

[Error] TypeError: undefined is not an object (evaluating 'chatMessages[u.openedRoom].input')
	(anonymous function) 

Taking a look at: https://github.com/RocketChat/Rocket.Chat/blob/develop/packages/rocketchat-ui-message/client/messageBox.js#L470

This makes sense. Basically onRendered in this template is called before chatMessages has even been defined or populated.

Some times data loading is fast enough that this doesn't happen. But when there is a slight delay the data isn't there in time.

Server Setup Information:

• Version of Rocket.Chat Server: 0.59.0+

Steps to Reproduce:

1. Put server under some load
2. Refresh like mad
3. Hope the condition hits.

Expected behavior:

Should either wait for this data... or should at least verify there before trying to access it.

Actual behavior:

Blank page

Relevant logs:

[Error] TypeError: undefined is not an object (evaluating 'chatMessages[u.openedRoom].input')
	(anonymous function) (f79e342366a21ea0345d878e108dbcceb4008c06.js:245:54875)