Shopify Reviews App - Currently it's not possible to reveal the "Write a review" form when linking to a product page. This would be useful for asking customers to provide a review of the product via email. Revision 1 is the original code from Shopify (spr.js), Revision 2 is my (very inexperienced) suggested change.

spr.js

!function() {
    var e = function(e) {
        var t = {
            exports: {}
        };
        return e.call(t.exports, t, t.exports),
        t.exports
    };
    e(function() {
        "use strict";
        window.innerShiv = function() {
            function e(e, t, r) {
                return /^(?:area|br|col|embed|hr|img|input|link|meta|param)$/i.test(r) ? e : t + "></" + r + ">"
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            var t, r, a = document, i = "abbr article aside audio canvas datalist details figcaption figure footer header hgroup mark meter nav output progress section summary time video".split(" ");
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                    d.appendChild(o.firstChild);
                return d
            }
        }()
    });
    (function() {
        window.SPR = function() {
            function e() {}
            return e.shop = Shopify.shop,
            e.host = "//productreviews.shopifycdn.com",
            e.version = "v4",
            e.api_url = e.host + "/proxy/" + e.version,
            e.badgeEls = [],
            e.reviewEls = [],
            e.elSettings = {},
            e.$ = void 0,
            e.extraAjaxParams = {
                shop: e.shop
            },
            e.registerCallbacks = function() {
                return this.$(document).bind("spr:badge:loaded", "undefined" != typeof SPRCallbacks && null !== SPRCallbacks ? SPRCallbacks.onBadgeLoad : void 0),
                this.$(document).bind("spr:product:loaded", "undefined" != typeof SPRCallbacks && null !== SPRCallbacks ? SPRCallbacks.onProductLoad : void 0),
                this.$(document).bind("spr:reviews:loaded", "undefined" != typeof SPRCallbacks && null !== SPRCallbacks ? SPRCallbacks.onReviewsLoad : void 0),
                this.$(document).bind("spr:form:loaded", "undefined" != typeof SPRCallbacks && null !== SPRCallbacks ? SPRCallbacks.onFormLoad : void 0),
                this.$(document).bind("spr:form:success", "undefined" != typeof SPRCallbacks && null !== SPRCallbacks ? SPRCallbacks.onFormSuccess : void 0),
                this.$(document).bind("spr:form:failure", "undefined" != typeof SPRCallbacks && null !== SPRCallbacks ? SPRCallbacks.onFormFailure : void 0)
            }
            ,
            e.loadStylesheet = function() {
                var e, t;
                return t = document.createElement("link"),
                t.setAttribute("rel", "stylesheet"),
                t.setAttribute("type", "text/css"),
                t.setAttribute("href", "https://productreviews.shopifycdn.com/assets/v4/spr-5a2d2fd286dca8042a3a5a76bc9032c64c52a2792a734307c76740d012641514.css"),
                t.setAttribute("media", "screen"),
                e = document.getElementsByTagName("head")[0],
                e.appendChild(t)
            }
            ,
            e.initRatingHandler = function() {
                return e.$(document).on("mouseover mouseout", "form a.spr-icon-star", function(t) {
                    var r, a, i;
                    return r = t.currentTarget,
                    i = e.$(r).attr("data-value"),
                    a = e.$(r).parent(),
                    "mouseover" === t.type ? (a.find("a.spr-icon:lt(" + i + ")").addClass("spr-icon-star-hover"),
                    a.find("a.spr-icon:gt(" + (i - 1) + ")").removeClass("spr-icon-star-hover")) : a.find("a.spr-icon").removeClass("spr-icon-star-hover")
                })
            }
            ,
            e.initDomEls = function() {
                return this.badgeEls = this.$(".shopify-product-reviews-badge[data-id]"),
                this.reviewEls = this.$("#shopify-product-reviews[data-id]"),
                this.$.each(this.reviewEls, function(e) {
                    return function(t, r) {
                        var a;
                        return a = e.$(r).attr("data-id"),
                        e.elSettings[a] = {},
                        e.elSettings[a].reviews_el = "#" + (e.$(r).attr("data-reviews-prefix") ? e.$(r).attr("data-reviews-prefix") : "reviews_"),
                        e.elSettings[a].form_el = "#" + (e.$(r).attr("data-form-prefix") ? e.$(r).attr("data-form-prefix") : "form_")
                    }
                }(this))
            }
            ,
            e.loadProducts = function() {
                return this.$.each(this.reviewEls, function(e) {
                    return function(t, r) {
                        var a, i;
                        if (a = e.$(r).attr("data-id"),
                        "false" !== e.$(r).attr("data-autoload"))
                            return i = e.$.extend({
                                product_id: a,
                                version: e.version
                            }, e.extraAjaxParams),
                            e.$.get(e.api_url + "/reviews/product", i, e.productCallback, "jsonp")
                    }
                }(this))
            }
            ,
            e.loadBadges = function() {
                var e, t, r, a, i;
                if (r = this.$.map(this.badgeEls, function(e) {
                    return function(t) {
                        return e.$(t).attr("data-id")
                    }
                }(this)),
                r.length > 0) {
                    for (t = 7,
                    i = []; (e = r.splice(0, t)).length > 0; )
                        a = this.$.extend(this.extraAjaxParams, {
                            product_ids: e
                        }),
                        i.push(this.$.get(this.api_url + "/reviews/badges", a, this.badgesCallback, "jsonp"));
                    return i
                }
            }
            ,
            e.initFormVisibility = function() {
                var p;
                if(window.location.href.indexOf("review-product=true") > -1) {
                    p = this.$("#shopify-product-reviews").attr("data-id")
                    e.toggleForm(p)
                }
            }
            ,
            e.pageReviews = function(e) {
                var t, r, a;
                return a = this.$(e).data("product-id"),
                r = this.$(e).data("page"),
                t = this.$.extend({
                    page: r,
                    product_id: a
                }, this.extraAjaxParams),
                this.$.get(this.api_url + "/reviews", t, this.paginateCallback, "jsonp"),
                !1
            }
            ,
            e.submitForm = function(e) {
                var t;
                return t = this.$(e).serializeObject(),
                t = this.$.extend(t, this.extraAjaxParams),
                t = this.$.param(t),
                t = t.replace(/%0D%0A/g, "%0A"),
                this.$.ajax({
                    url: this.api_url + "/reviews/create",
                    type: "GET",
                    dataType: "jsonp",
                    data: t,
                    success: this.formCallback,
                    beforeSend: function(e) {
                        return function() {
                            return e.$(".spr-button-primary").attr("disabled", "disabled")
                        }
                    }(this),
                    complete: function(e) {
                        return function() {
                            return e.$(".spr-button-primary").removeAttr("disabled")
                        }
                    }(this)
                }),
                !1
            }
            ,
            e.reportReview = function(e) {
                var t;
                return confirm("Are you sure you want to report this review as inappropriate?") && (t = this.$.extend({
                    id: e
                }, this.extraAjaxParams),
                this.$.get(this.api_url + "/reviews/report", t, this.reportCallback, "jsonp")),
                !1
            }
            ,
            e.toggleReviews = function(e) {
                var t;
                return t = this.$("#shopify-product-reviews[data-id='" + e + "']"),
                t.find(".spr-reviews").toggle()
            }
            ,
            e.toggleForm = function(e) {
                var t;
                return t = this.$("#shopify-product-reviews[data-id='" + e + "']"),
                t.find(".spr-form").toggle()
            }
            ,
            e.setRating = function(e) {
                var t, r, a;
                return t = this.$(e).parents("form"),
                a = this.$(e).attr("data-value"),
                r = this.$(e).parent(),
                t.find("input[name='review[rating]']").val(a),
                this.setStarRating(a, r)
            }
            ,
            e.setStarRating = function(e, t) {
                return t.find("a:lt(" + e + ")").removeClass("spr-icon-star-empty spr-icon-star-hover"),
                t.find("a:gt(" + (e - 1) + ")").removeClass("spr-icon-star-hover").addClass("spr-icon-star-empty")
            }
            ,
            e.badgesCallback = function(t) {
                var r;
                return r = t.badges,
                e.$.map(e.badgeEls, function(t) {
                    var a;
                    if (a = e.$(t).attr("data-id"),
                    r[a] !== undefined)
                        return e.$(t).replaceWith(r[a]),
                        e.triggerEvent("spr:badge:loaded", {
                            id: a
                        })
                })
            }
            ,
            e.productCallback = function(t) {
                var r;
                return r = t.remote_id.toString(),
                e.renderProduct(r, t.product),
                e.renderForm(r, t.form),
                e.renderReviews(r, t.reviews)
            }
            ,
            e.renderProduct = function(e, t) {
                return this.$.map(this.reviewEls, function(r) {
                    return function(a) {
                        if (e === r.$(a).attr("data-id"))
                            return r.$(a).html(innerShiv(t, !1)),
                            r.triggerEvent("spr:product:loaded", {
                                id: e
                            })
                    }
                }(this))
            }
            ,
            e.renderForm = function(e, t) {
                var r;
                return r = this.$(this.elSettings[e].form_el + e),
                r.html(t),
                this.triggerEvent("spr:form:loaded", {
                    id: e
                })
            }
            ,
            e.renderReviews = function(t, r) {
                var a;
                return a = e.$(e.elSettings[t].reviews_el + t),
                a.html(r),
                e.triggerEvent("spr:reviews:loaded", {
                    id: t
                })
            }
            ,
            e.formCallback = function(t) {
                var r, a, i, n;
                return n = t.status,
                i = t.remote_id,
                a = t.form,
                r = e.$(e.elSettings[i].form_el + i),
                r.html(a),
                "failure" === n && e.initStarRating(r),
                "success" === n && e.$("#shopify-product-reviews[data-id='" + i + "'] .spr-summary-actions-newreview").hide(),
                e.triggerEvent("spr:form:" + n, {
                    id: i
                })
            }
            ,
            e.initStarRating = function(e) {
                var t, r, a;
                if ((a = e.find("input[name='review[rating]']")) && a.val())
                    return r = a.val(),
                    t = e.find(".spr-starrating"),
                    this.setStarRating(r, t)
            }
            ,
            e.paginateCallback = function(t) {
                var r, a;
                return a = t.remote_id.toString(),
                r = t.reviews,
                e.renderReviews(a, r)
            }
            ,
            e.reportCallback = function(t) {
                var r;
                return r = "#report_" + t.id,
                e.$(r).replaceWith("<span class='spr-review-reportreview'>" + e.$(r).attr("data-msg") + "</span>")
            }
            ,
            e.loadjQuery = function(t) {
                return e.loadScript("//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js", function() {
                    return e.$ = jQuery.noConflict(!0),
                    t()
                })
            }
            ,
            e.loadScript = function(e, t) {
                var r;
                return r = document.createElement("script"),
                r.type = "text/javascript",
                r.readyState ? r.onreadystatechange = function() {
                    if ("loaded" === r.readyState || "complete" === r.readyState)
                        return r.onreadystatechange = null,
                        t()
                }
                : r.onload = function() {
                    return t()
                }
                ,
                r.src = e,
                document.getElementsByTagName("head")[0].appendChild(r)
            }
            ,
            e.loadjQueryExtentions = function(e) {
                return e.fn.serializeObject = function() {
                    var t, r;
                    return t = {},
                    r = this.serializeArray(),
                    e.each(r, function() {
                        return t[this.name] ? (t[this.name].push || (t[this.name] = [t[this.name]]),
                        t[this.name].push(this.value || "")) : t[this.name] = this.value || ""
                    }),
                    t
                }
            }
            ,
            e.triggerEvent = function(e, t) {
                return this.$(document).trigger(e, t)
            }
            ,
            e
        }(),
        function() {
            SPR.loadStylesheet(),
            SPR.loadjQuery(function() {
                return SPR.$.ajaxSetup({
                    cache: !1
                }),
                SPR.loadjQueryExtentions(SPR.$),
                SPR.$(document).ready(function() {
                    return SPR.registerCallbacks(),
                    SPR.initRatingHandler(),
                    SPR.initDomEls(),
                    SPR.loadProducts(),
                    SPR.loadBadges(),
                    SPR.initFormVisibility()
                })
            })
        }()
    }
    ).call(this)
}("undefined" != typeof global ? global : "undefined" != typeof window && window);