Screen-recording of the above steps

Deleted: ChromeIssue480p.mov 16.7 MB

ChromeIssue480p.mov 16.7 MB Download

We will really appreciate if you can tell us some workaround to this issue.

Tentatively assigning to weili@ / assumming that this might be related to UsePdfCompositorServiceForPrint.

xlrohit@ - does the issue repro if you launch Chrome with the following cmdline flag: --disable-features=UsePdfCompositorServiceForPrint?

This is effectively  bug 859481  for Chrome 69, right? Chrome 67 and Chrome 68 has an opt out option. Chrome 70 has this fixed. Chrome 69 is caught in the middle.

Assuming this is the case, one possibility is to merge the fix, r577712, to Chrome 69.

Based on #8, re-assign to thestig@

weili: Do you know why chrome://flags/#site-isolation-trial-opt-out stopped working?

Tested the issue on reported chrome version #69.0.3497.81, latest dev #70.0.3538.9 and latest canary 71.0.3549.0 on Mac 10.13.6 and below are the observations.

Observations:
===========
1.Able to reproduce the issue on reported chrome version #69.0.3497.81, observed that after clicking 'Open in Preview', no action is being performed.
2.Unable to reproduce the issue on both latest M-70 (#70.0.3538.9) and latest canary #71.0.3549.0, observed that after clicking 'Open in Preview', it opens the file in preview.

As per comment#8, the root cause of issue seems to be identified, hence removing Needs-Bisect label. Requesting thestig@ to merge the issue to M-69, so adding ReleaseBlock-Stable label.
Note: Please feel free to remove the ReleaseBlock-Stable label if it is not applicable.

Thanks.!

@lukasza: Thanks for the workaround! By disabling pdf-compositor-service-for-print I am able to use print options in system dialog (print, open in preview and save as pdf)

Tried both of the following ways to disable the service and it was working afterwards.
 - launching Chrome with this cmdline flag: --disable-features=UsePdfCompositorServiceForPrint 
 - by disabling the same via chrome://flags/#use-pdf-compositor-service-for-print

RE: #c10: thestig@: Why chrome://flags/#site-isolation-trial-opt-out stopped working?

Because to turn off print compositing, *both* 1) Site Isolation and 2) kUsePdfCompositorServiceForPrint feature need to be disabled:

//components/printing/browser/print_manager_utils.cc:
    void CreateCompositeClientIfNeeded(content::WebContents* web_contents) {
    ...
        if (content::SiteIsolationPolicy::ShouldPdfCompositorBeEnabledForOopifs() ||
          base::FeatureList::IsEnabled(
              features::kUsePdfCompositorServiceForPrint)) {
        PrintCompositeClient::CreateForWebContents(web_contents);
        SetOopifEnabled();
      }
    }

r565018 (landed in 69.0.3452.0) made kUsePdfCompositorServiceForPrint turned on by default, which meant that turning off Site Isolation is not sufficient anymore for turning off print compositing.

bug reporter: Looks like we found a workaround. Are you ok with the workaround for Chrome 69? You won't need it in Chrome 70.

re: comment 13: Right, thanks for reminding me.

@thestig: Yes, I am okay with the workaround as this issue won't be there in v70.

Per comments #14 and #15, not a blocker for M69. Pls target fix for M70.

bug reporter: Thanks for letting us know. We won't take any actions on this issue then.

Please also consider trying out Chrome Beta Channel. If you find issues on the Beta Channel and report them, we can fix them earlier, so the issues never affect most users who are on Stable Channel.

@thstig: Thanks! I will make sure to check Beta channel periodically.