Fine0830 commented on PR #115:
URL:
https://github.com/apache/skywalking-client-js/pull/115#issuecomment-1765699568
> > > > > When the match variable is null, the url will be '', and reading
match[1] will result in a runtime error.
> > > >
> > > >
> > > > I did not reproduce this issue, and the `match && match[1]` is in
codes, I don't think the error will happen.
> > >
> > >
> > > @Fine0830
> > > ```
> > > // background-image: url('https://www.example.com/test.png')
> > > const match = getStyle(item.ele,
'background-image').match(/url\(\"(.*?)\"\)/);
> > > let url: string = '';
> > > if (match && match[1]) { // match would be null and this branch would
not be executed
> > > url = match[1];
> > > }
> > > if (!url.includes('http')) { // url would be '' and this branch would
be executed
> > > url = location.protocol + match[1]; // throw a error when read
property 1 from match, because match would be null
> > > }
> > > ```
> >
> >
> > I gave it a try but get `match` is
`['url("https://www.example.com/test.png";)',
'https://www.example.com/test.png', index: 0, input:
'url("https://www.example.com/test.png";)', groups: undefined]`, not `null`.
>
> The regular expression does not account for matching URLs with single
quotes or URLs without any quotes.
Could you explain what is the `background-image` value in your case?
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
![https://www.example.com/test.png"](https://www.example.com/test.png"){kind=link}