Webclient connections periodically fail to finish connecting (workaround included)

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Nov 10 2015, 12:39 pm
It looks like webclient.dart.js is included twice when it fails. @LummoxJR: Can this be the cause?

EDIT: Yeah, better reopen this one. The error definitely seems to be coming from the 2nd webclient.dart.js script.

Is there a quick fix for this? It's really annoying to develop like this, there's a 70/30 chance of getting the error condition so I keep having to reconnect over and over.
Nov 10 2015, 12:51 pm
Workaround:

1. Open "c:\Program Files (x86)\BYOND\web\webclient.dart.js" in a text editor. (The path may be different depending on your OS and what you chose during installation.)

2. At the TOP of the file add the following bit: 
var WORKAROUND_BYOND_BUG_1980108;

if (!WORKAROUND_BYOND_BUG_1980108)
{
    WORKAROUND_BYOND_BUG_1980108 = true;


3. At the BOTTOM of the file add the following bit: 
}


4. Save the file. Note that this requires administrator privileges on Windows 8 or higher - run Notepad in administrator mode.

This temporarily solves the issue until the next update.
Nov 10 2015, 12:55 pm
Included twice? That's bizarre. That shouldn't be happening at all.
Nov 10 2015, 12:56 pm
Lummox JR changed status to 'Open'
Nov 10 2015, 12:57 pm
"WORKAROUND_BYOND_BUG_1980108"

I love arbitrary bug numbers like this. It makes it look like you've got nearly two million bug work arounds.
Nov 10 2015, 12:57 pm
In response to Rushnut
Rushnut wrote:
"WORKAROUND_BYOND_BUG_1980108"

I love arbitrary bug numbers like this. It makes it look like you've got nearly two million bug work arounds.

;-)

Note that it does work: id:1980108
Nov 10 2015, 1:34 pm
NQ, do you by any chance have two different .dart.js files in your BYOND/web directory?

I ask because there's really no way that sending the script twice should ever happen. When the /play page is generated by your server it includes all .dart.js files first, then all .js files in the web dir. It explicitly does not allow double-inclusion. This would also explain the bizarre line numbers you got, which bear no relation to anything used by current builds.
Nov 10 2015, 1:39 pm
I'm sorry to tell you this, but I only have one "webclient.dart.js" file in "c:\Program Files (x86)\BYOND\web".



Have you considered:
- case-sensitivity of the files being looked up?
- byond caching issue (i.e., file stored in .flash.rsc file that's causing the duplicate)?
- maybe the file is included from byond.com somehow?
- asynchronous javascript loader? since the problem only sometimes occurs maybe it's the same problem I had with jQuery
Nov 10 2015, 2:35 pm
Case-sensitivity isn't an issue, and there's no way a file in the .rsc would contribute to the files being sent in the source. But I do wonder if maybe some code in the webclient is seeing its own script tag as something it needs to deal with and load later. I'll see if I can find any info.
Nov 10 2015, 3:51 pm
I'm not finding any way that the webclient.dart.js script can be included twice.

I'd like if you could take a look at the elements in the iframe; this will require you to remove the workaround so you know the problem has occurred. When it happens, open up the developer tools in your browser and go into the iframe. The <head> element should contain a number of scripts, the first of which is webclient.dart.js; the next should be ext.js. After that you should see a number of other scripts, and webclient.dart.js is not supposed to be in there anywhere else. (Nor should it show up anywhere in the document body.) If you do see it anywhere else, please let me know what you see and where. Screenshots of the dev tools may be helpful in that case.
Nov 11 2015, 1:43 am
Just chiming in:

I'm getting this issue as well, though mostly (exclusively, even - have not experienced this while actually hosting a game) while testing locally.

http://www.byond.com/rsc/video-js/videojs.ads.css Failed to load resource: net::ERR_BLOCKED_BY_CLIENT
webclient.dart.js:37248 Uncaught SyntaxError: Unexpected identifier


It happens sporadically and isn't possible to reproduce on my end. It is VERY annoying, though.

EDIT: Workaround thus far seems to work, though!
Nov 11 2015, 9:58 am
When it does happen (I suggest altering the workaround so it spits something out to console.log() if it triggers), I'd like if you could get the info I requested then about what script tags you find in the document and where.

The server code is very explicitly only including this file once, so I have no idea what could be pulling it in a second time. The webclient code asynchronously loads any scripts it finds in the .dms skin and the controls, but at no point should it be loading webclient.dart.js again either.
Nov 15 2015, 3:02 am
So, this might actually be a browser bug.


If I attempt to join normally after some time has past, it doesn't work.

If I hit f5 with the console closed, no matter how many times, it doesn't work.

If I hit f5 with the console open, it works some times,

If I hit control+f5(reload without using cache) with or without the console open, it always works.
Nov 15 2015, 10:37 am
I wonder if it's reloading the iframe improperly.
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