186278 2018-06-04 12:45:42 -0700 [WPE][GTK] Cannot download main resource for media files 2020-05-18 01:24:48 -0700 1 1 1 Unclassified WebKit WebKitGTK WebKit Nightly Build PC Linux REOPENED https://bugs.webkit.org/show_bug.cgi?id=186276 https://bugzilla.gnome.org/show_bug.cgi?id=746737 P2 Normal --- 1 mcatanzaro webkit-unassigned agomez bugs-noreply mcatanzaro pnormand oldest_to_newest 1429867 0 mcatanzaro 2018-06-04 12:45:42 -0700 In Epiphany, visit either of these resources, then right click and "Save Page As": Audio: https://upload.wikimedia.org/wikipedia/commons/9/90/Papalotla-sound.ogg Video: https://upload.wikimedia.org/wikipedia/commons/3/35/Nerven_(1919).webm Don't use "Save Video As" since that works fine. If you instead use "Save Page As" the browser will crash due to bug #186276. But with the patch from that bug to fix the crash, it still fails to download the media. I've been debugging a little bit: * In WebPage::getMainResourceDataOfFrame, frame->coreFrame()->loader().documentLoader() returns a valid DocumentLoader, but then loader->mainResourceData() returns nullptr. Bad. Turns out DoucmentLoader::m_mainResourceData is nullptr. * Why? Not sure, I haven't dived in deep enough. But it seems that webkitWebViewResourceLoadStarted (in WebKitWebView.cpp) gets called *three* times, instead of once, as I would expect. WebKitWebView assumes the first resource load is the main resource, which seems like it should be a safe assumption, but I'm going to guess that the real main resource is the third one (not sure). Looks like something weird is going on inside WebCore. Requires further investigation. 1429871 1 mcatanzaro 2018-06-04 12:54:38 -0700 BTW what Epiphany is doing here is (1) webkit_web_view_get_main_resource() then (2) webkit_web_resource_get_data(). 1555031 2 pnormand 2019-07-23 03:45:49 -0700 I can't reproduce this with Ephy TP 3.33.4-29-gf6bb1bce5 and I doubt it's related with GStreamer anyway. 1555037 3 mcatanzaro 2019-07-23 06:40:13 -0700 This one is fixed! 1632652 4 mcatanzaro 2020-03-22 10:23:25 -0700 Reopening. I closed this in error; it's not fixed after all. Since r243608, the files are now "successfully" downloaded instead of crashing the UI process, but they are one-byte files containing only a NULL byte.