Suppressing the "red screen of error" for external JavaScript libraries

Developers
#1

I am using an external javascript library (not by me) that has semi-frequent errors. The errors don’t impact the functioning of the wiki, nor cause data loss. I’m including the library in a $:/tags/RawMarkup tiddler that just uses <script> tags.

Is there any way to catch / suppress these before they get to TiddlyWiki’s “red screen of error” handling? I’m worried that would be confusing for users. I don’t want to globally disable the “red screen of error”, as there may be legitimate errors thrown by the wiki.

#2

It may depend on the library

#3

you could maybe try with

try {
//include lib here
} catch (e ) {}

errors can occur because the library is downloading something (or itself) from the internet and the tiddlywiki js calls the lib too early, before it has finished loading.

#4

Thanks @buggyj. I came up with a slightly hacky WikiText only solution, leaving it here for others that may want it:

  1. Make a new tiddler with this in its text:
.tc-error-form { display: none;}
  1. Tag it $:/tags/Stylesheet

This is a major hack and may lead to data loss, but works for my purposes. The errors are left in the DOM in case you need to inspect them.

#5

Did you try to tell them, that there is a problem?

#6

If you share your wiki with others, this will create a severe problem in the future and may even hurt TiddlyWiki’s reputation.

What’s the library you use. There may be a possibility to “catch” those errors in a better way, instead of hiding them. :see_no_evil: should not be a way we solve problems.

#7

The library is a-frame. It’s a DOM-based way of integrating 3D content. it works well with TiddlyWiki’s transclusion system and can be used to build 3D experiences in TW.

I think the library assumes control over the event stack, so it gets surprised if key input comes into an element not owned by the framework.

#8

How did you include it into TW. There is the github repo: aframe/dist at master · aframevr/aframe · GitHub

Which version do you use? Did you include it as described here: Introduction – A-Frame ? or did you use a CDN to include it.

It may be possible to include a-frame pages as iframes into TW. IFrames would probably be independent from TW errors. But I’m not sure about that. — It’s just an idea.

#9

sounds very interesting!