René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"if `offline=FALSE`, better indicator that the iframes won't render in the rstudio web viewer","articleBody":"if offline is disabled, it's confusing to see a blank screen when you `runApp`\n\n![image](https://cloud.githubusercontent.com/assets/1280389/9040970/78fe832a-39d3-11e5-82e2-110f439bd06c.png)\n\nA couple options:\n- Is it possible to open the app in the web browser instead of the rstudio viewer **if** `offline=FALSE`?\n- Maybe show a \"Unfortunately, IFrames like this plotly graph can't be viewed in RStudio. [View this app in your web browser instead](https://localhost:4000)\" placeholder instead of the blank iframe. If the `onerror` event is fired from shiny, we could show the placeholder on that event: http://stackoverflow.com/questions/15273042/catch-error-if-iframe-src-fails-to-load-error-refused-to-display-http-ww\n","author":{"url":"https://github.com/chriddyp","@type":"Person","name":"chriddyp"},"datePublished":"2015-08-03T15:38:32.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/245/plotly.R/issues/245"}