Or the other suggestion: > The other option is to vulcanize your entire app (vulcanize index.html -o index.v.html) which removes all import requests.
On Mon, May 2, 2016 at 1:00 PM Jim Trainor <[email protected]> wrote: > I am not aware of any override on WKWebView that permits file:// access. > > I’m the second person to have posted this as a bug on the Apache Cordova > bug tracker. It is not hard to file other reports of people stumbling over > the lack of file:// support in WkWebView. The embedded web server approach > seems to be the usual solution. But that doesn’t capture the file:// XHR > requests. > > … so… hmm…. head scratch… seems to be a blocker at the moment. > > > On Mon, May 2, 2016 at 3:22 PM, Eric Bidelman <[email protected]> wrote: > >> On IOS (a polyfilled browser), the web components polyfill loads html >> imports using XHR. This means that from a webview, they're loaded from >> file:///, which is typically blocked by browsers/environments for security >> reasons. >> >> Unsure if there's an equivalent in ios, but in android webview, you can >> override this setting: >> >> https://www.polymer-project.org/0.5/articles/webview.html#tweaking-the-webview-settings >> >> The other option is to vulcanize your entire app (vulcanize index.html -o >> index.v.html) which removes all import requests. >> >> On Mon, May 2, 2016 at 12:10 PM Jim Trainor <[email protected]> >> wrote: >> >>> am about to revisit this in depth… but… the last time I dug in there >>> was definitely an XHR load of an html file originating from polymer (from >>> the web component.min.js, actually, as I recall, which I am classifying >>> generically as “polymer”). >>> >>> As I recall the XHR request was loading html web components from its >>> host (I think it was loading the entire vulcanized html file). If that host >>> url happens to be file:// then that is what it used for the XHR request. >>> The problem is… WKWebView rejects that access… so no-go for the Polymer app. >>> >>> If the page is loaded via an ordinary http request then all is well. The >>> exact same code loading via an Android WebView is fine also. The problem >>> is limited to security restrictions in WKWebView. See the bug link that I >>> posted for more info. >>> >>> On Mon, May 2, 2016 at 12:34 PM, Karl Tiedt <[email protected]> wrote: >>> >>>> Nothing in polymer appears to reference file:// anything... this sounds >>>> like it may be a Cordova issue? >>>> >>>> -Karl Tiedt >>>> >>>> On Mon, May 2, 2016 at 9:17 AM, Jim Trainor < >>>> [email protected]> wrote: >>>> >>>>> Polymer applications fail to load in an iOS WKWebView, as supported by >>>>> Cordova. The root cause of the problem is that WKWebView does not permit >>>>> loading of content via file:. Cordova's support for WKWebView bypasses >>>>> this restriction by implementing a in-app web server to host the static >>>>> content. Polymer fails because the polymer code tries to load a local, >>>>> static, html file, using a file:// url via an XHR request. The file:// XHR >>>>> request is rejected by WKWebView. >>>>> >>>>> This has turned into a blocking issue for publishing Polymer >>>>> applications, using Cordova, on iOS. >>>>> >>>>> Does this sound familiar to anybody? >>>>> >>>>> Is there anyway to cleanly define the URL where Polymer loads elements >>>>> (or whatever is loaded via the file:// XHR)? >>>>> >>>>> Here is the Apache bug: Allow WKWebView to proxy file:// url loading >>>>> in XmlHttpRequest.open >>>>> <https://issues.apache.org/jira/browse/CB-10109?jql=project%20%3D%20CB%20AND%20labels%20%3D%20wkwebview-known-issues> >>>>> >>>>> >>>>> >>>>> >>>>> Follow Polymer on Google+: plus.google.com/107187849809354688692 >>>>> --- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Polymer" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/polymer-dev/72dda4a2-5447-4dec-a4e7-b075a02927ad%40googlegroups.com >>>>> <https://groups.google.com/d/msgid/polymer-dev/72dda4a2-5447-4dec-a4e7-b075a02927ad%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> >>>> >>> Follow Polymer on Google+: plus.google.com/107187849809354688692 >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "Polymer" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/polymer-dev/CACDv4tDu6JrtF1TQcv_KtB1V_W%3Dfouhtbrv_AV6SaMGeLMTH9Q%40mail.gmail.com >>> <https://groups.google.com/d/msgid/polymer-dev/CACDv4tDu6JrtF1TQcv_KtB1V_W%3Dfouhtbrv_AV6SaMGeLMTH9Q%40mail.gmail.com?utm_medium=email&utm_source=footer> >>> . >>> For more options, visit https://groups.google.com/d/optout. >>> >> > Follow Polymer on Google+: plus.google.com/107187849809354688692 > --- > You received this message because you are subscribed to the Google Groups > "Polymer" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/polymer-dev/CACDv4tDUgatzLXBSXGkjJn7xWomi6%2By-uQCGF0JN1i_mwJ%2B8aQ%40mail.gmail.com > <https://groups.google.com/d/msgid/polymer-dev/CACDv4tDUgatzLXBSXGkjJn7xWomi6%2By-uQCGF0JN1i_mwJ%2B8aQ%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > Follow Polymer on Google+: plus.google.com/107187849809354688692 --- You received this message because you are subscribed to the Google Groups "Polymer" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/polymer-dev/CACGqRCBnFqHqXUxQSHi_O%2BNUBdSyHXL%3D1OuTRgAqWp1SSfWtwA%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
