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Offline exporting fails when boost is active #19253
Description
Expected behaviour
When exporting PDF offline, I expect a file with the same data as the displayed trend.
Actual behaviour
Once the Boost module is active, the exported PDF-chart is empty. If the boost module is not active, the export basically works. However, if a PDF is exported, an error message appears in the Chrome log for internal parameters that were not found.
Live demo with steps to reproduce
Standard: https://jsfiddle.net/PadWorks/stn6w9a7/26/
Boost Active: https://jsfiddle.net/PadWorks/759csfgk/9/
Product version
Highcharts JS v11.1.0
Affected browser(s)
Chrome
Metadata
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Type
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- Status
Activity
karolkolodziej commentedon Jul 4, 2023
Hi @PadWorks!
It looks like it is a regression introduced in the v9.3.2 probably along with the AST- demo with the last working version.
Internal note: It fails in this loop, the
hrefis missing:highcharts/ts/Extensions/OfflineExporting/OfflineExporting.ts
Lines 811 to 839 in 245dfbb
PadWorks commentedon Aug 10, 2023
@jakubSzuminski Does that mean you are about to solve the problem? By when can I expect a fix?
jszuminski commentedon Aug 11, 2023
Hi @PadWorks, I'm currently debugging this issue.
I cannot give you a specific ETA, but I've recently started working on this problem. I will do everything I can to solve it as soon as possible. I cannot give you any guarantees, but my estimate would be around 2 weeks.
If I find any simple workaround available, I'll let you know here.
jszuminski commentedon Aug 17, 2023
@PadWorks this was a tricky one as there were different reasons for different formats.
I've prepared a simple fix for you which you can use freely until the next release: https://jsfiddle.net/BlackLabel/9h083ucz/
Please let me know if that works for you.
PadWorks commentedon Aug 21, 2023
@jakubSzuminski Many thanks. Basically the export now works with image types PNG and JPG, but unfortunately there seems to be a problem with the PDF export.
https://jsfiddle.net/PadWorks/3vz7p18s/
jszuminski commentedon Aug 21, 2023
@PadWorks no problem!
Actually, if you take a look at how it used to work in v9.3.1 you'll notice that the file size did not increase due to my fix as it was also above 120MB. The reason for this big size is the high
exporting.zoom(https://api.highcharts.com/highcharts/exporting.scale) and high resolution.You're right - I've fixed this by allowing the
fedropshadowtag: https://jsfiddle.net/BlackLabel/9eyf4chm/This fix does not touch anything related to the file size of the exported file. The only purpose of the solution that I've included is to enable you to export to png/jpeg/pdf with offline exporting the same way you used to be able to do with versions <9.3.2.
I'll look into the PDF corruption you described deeper this week and see if there's anything we can do about this.
Fixed #19253, Offline Export did not work for boost.
Fixed #19253, Offline Export did not work for boost.
PadWorks commentedon Sep 6, 2023
@TorsteinHonsi Will this fix only be available in the next release, or is there already a hotfix for v11.1? If it is only available in the next release, is it already foreseeable when this will be available?